Bantay Gloria: Why Sandro Marcos Just Went Undercover in Lakas-CMD

The Godfather’s Daughter vs. the Heir Apparent: A Cold War Brewing Inside Lakas-CMD

By Louis ‘Barok‘ C. Biraogo | October 16, 2026

MGA ka-kweba, countrymen, and those still naive enough to believe that political parties in this country stand for anything other than the acquisition and retention of power — welcome back.

Today we dissect a political maneuver so brazen, so deliciously Machiavellian, that it deserves its own telenovela franchise: the defection of House Majority Leader Sandro Marcos from his own father’s party into the embrace of Lakas-Christian Muslim Democrats (Lakas-CMD) — the political fortress of Gloria Macapagal-Arroyo, the woman who has outlasted every political storm since the 1990s.

On October 12, 2026, the President’s son took his oath as a Lakas-CMD member. No press release. No photo handout. No explanation. Just a quiet ceremony at the House of Representatives, with Arroyo reportedly present.

The man who controls the legislative agenda of the entire House — the son of the sitting President — simply switched teams. And the Palace? Silence.

Let me translate this for you: In Philippine politics, when the President’s son leaves the President’s party to join the party of the President’s rival, you are not witnessing routine party realignment. You are witnessing a declaration of war.

***“He Joined to Watch Her. She Watched Him Join. We Watched Both.”***

The Jailed Uncle and the Woman Who Never Left

To understand this power play, you must first understand the vacuum it was designed to fill.

Former Speaker Martin Romualdez — Sandro’s uncle, the President’s cousin, and until recently one of the most powerful men in the country — sits in detention, charged with plunder over an alleged ₱7.44 billion in kickbacks from flood control projects.

The Ombudsman says the evidence is substantial. The Palace says it respects the process. And the man who once commanded over 110 House members in Lakas-CMD now commands nothing but a jail cell and a legal defense team.

Enter Gloria Macapagal-Arroyo.

At 79 years old, the former President has done what she has always done when everyone counts her out: she has repositioned. With Romualdez incapacitated, Arroyo has effectively taken the reins of Lakas-CMD.

The party’s membership may have dwindled from its peak of 110 to around 70, but 70 House members is still a formidable bloc — enough to influence committee assignments, legislative priorities, and, critically, impeachment votes.

And there is a specific impeachment vote everyone is watching.

Vice President Sara Duterte is on trial in the Senate, facing a single remaining article on unexplained wealth. The prosecution dropped three of four charges earlier this week.

Sara leads the 2028 presidential polls by a staggering 24 points. And Arroyo, according to multiple reports, is positioned to consolidate Lakas-CMD behind the Vice President.

The Marcos camp saw this coming. Hence Sandro’s defection.

Bantay Gloria: The Containment Strategy

The reported rationale for Sandro’s move is as old as politics itself: if you cannot control an organization from the outside, put someone on the inside.

An informant quoted by BNC News — the kind of anonymous source who conveniently advances a particular faction’s narrative — put it bluntly: “GMA could use Lakas-CMD to shore up support for Sara, especially with the impeachment trial underway. But with Sandro inside the party, it would be more difficult to call the shots without someone watching her moves.”

“Watching her moves.” Let those three words sink in.

The House Majority Leader — a sitting congressman, the President’s son — has been deployed as a surveillance asset inside a rival’s political organization. This is not coalition-building. This is Cold War-style containment, the Philippine edition.

Sandro’s position makes this all the more significant. As Majority Leader, he controls legislative scheduling and floor coordination. He has a direct line to Malacañang. And now, he has a seat inside the very party that could become Sara Duterte’s legislative arsenal.

The party’s numbers make it too important for the Marcos camp to leave entirely under Arroyo’s influence. Seventy House members is not a minor political bloc. It is a potential kingmaking force in the impeachment trial and in the 2028 elections.

The Marcos camp could not afford to let it drift into Duterte’s orbit without a fight.

But here is where the story becomes fascinating — and deeply cynical.

The Luistro Defense: A Classic Non-Denial Denial

Batangas Rep. Gerville Luistro, a Lakas-CMD member and — oh, by the way — the lead House prosecutor in Sara Duterte’s impeachment trial, immediately went on the defensive.

Sandro’s move, she claimed, was about filling the leadership void left by Romualdez’s arrest. Nothing to do with impeachment. Nothing to do with politics. Just a concerned nephew stepping up to help the family business.

“Wala din kaming information relative to that,” Luistro said when asked about the containment theory. “The only thing that I know is because of what happened to Speaker Martin, who is the president of Lakas-CMD, of course we needed somebody to take care of Lakas-CMD.”

Let me parse this for you, mga ka-kweba.

Luistro is simultaneously:

A Lakas-CMD member defending Sandro’s entry into her party;
The lead prosecutor in Sara Duterte’s impeachment trial;
Claiming complete ignorance of any political motives behind the timing.

If you believe that a sitting prosecutor in the highest-profile impeachment trial in the country is unaware of the political implications of the Majority Leader joining the party that could influence that trial, I have a bridge in Ilocos Norte to sell you.

The timing is not coincidental. It never is.

The Party That Stands for Nothing

Here is the uncomfortable truth that neither the Marcos camp nor the Arroyo camp wants you to confront: Lakas-CMD is not a political party in any meaningful ideological sense. It is a vehicle. It has always been a vehicle.

In 2018, Arroyo became Speaker with Duterte’s backing. In 2022, Romualdez took the speakership with Marcos’s backing. Now, with Romualdez jailed and Arroyo ascendant, the party is being contested by two rival dynasties like a piece of real estate.

Sandro’s defection is the latest chapter in this sordid history. He left Partido Federal ng Pilipinas (PFP) — his own father’s party — not because of any ideological disagreement, but because Lakas-CMD’s 70 votes are more strategically valuable than PFP’s symbolic value as the President’s party.

What does PFP stand for? What does Lakas-CMD stand for? What does any of this stand for?

Nothing. And that is precisely the point.

Philippine political parties are personality-driven vehicles designed to win elections, distribute patronage, and protect their leaders from accountability. They are not programmatic organizations. They do not represent coherent policy visions.

They are, as any honest observer of Philippine politics already knows, “weakly institutionalized, personality-driven, and heavily dependent on private financing.”

Sandro’s move is not a betrayal of principles. It is a recognition that principles were never part of the equation.

The Speaker Who Was Left Behind

Amid all the speculation about Sandro versus Arroyo, one figure has been conspicuously overlooked: House Speaker Faustino “Bojie” Dy III.

Dy is a member of PFP — the party Sandro just abandoned. The Majority Leader of the House of Representatives has just left the Speaker’s party to join a rival organization. And Dy is expected to what? Smile and carry on?

Sources close to the Speaker insist his position is secure, that NUP and other blocs remain behind him. But the symbolism is devastating. The President’s son — the Majority Leader, the legislative enforcer — has effectively signaled that PFP is not the future. Lakas-CMD is.

What does it say about Bojie Dy when his own Majority Leader leaves their party? And this isn’t just any party. PFP is headed by Sandro’s own father, the President.

The answer, mga ka-kweba, is that it says Dy’s speakership is being hollowed out from within. He may survive for now. He may even survive until 2028. But the message has been sent: the real power is shifting, and it is shifting toward Lakas-CMD.

The Unanswered Questions

Let me be clear about what we know and what we do not know.

We know that Sandro Marcos left PFP and joined Lakas-CMD on October 12. We know that Arroyo was present. We know that Romualdez is detained on plunder charges. We know that Sara Duterte’s impeachment trial is ongoing, with only the unexplained wealth charge remaining. We know that Sara leads the 2028 polls.

We do not know — and this is crucial — whether Sandro’s move was specifically designed to contain Arroyo. That claim comes from a single unnamed informant. It is plausible. It is consistent with the political incentives. But it is not proven.

What is proven is that the move creates a structural counterweight. Whether intentional or not, Sandro’s presence in Lakas-CMD complicates any effort by Arroyo to deliver the party wholesale to Duterte. The two are now partymates, but that does not make them allies.

The Dynasty That Ate Itself

The deepest irony here is that the Marcos and Arroyo families have been allies, rivals, and everything in between for decades. Arroyo served in Marcos Sr.’s government. She was ousted by People Power II. She jailed Marcos allies. Then she allied with the Marcoses again. Now her interests may align with Duterte’s against the Marcoses.

This is not ideology. This is not principle. This is not even coherent self-interest. This is the chaotic, cannibalistic logic of dynastic politics, where every alliance is temporary and every betrayal is expected.

Sandro Marcos — the President’s son, the Majority Leader, the heir apparent — has been deployed to watch Gloria Arroyo. Arroyo, the ultimate survivor, will now be watching Sandro right back.

And somewhere in the Senate, Sara Duterte — leading in the polls, facing conviction, waiting for the trial to resume in November — is watching both of them.

The Real Scandal

The real scandal is not that Sandro switched parties. Parties switch all the time in this country. The real scandal is that anyone pretends this matters.

What matters is whether the flood control plunder case against Romualdez proceeds to conviction. What matters is whether Sara Duterte’s impeachment trial is decided on evidence or on politics. What matters is whether the 2028 elections will be about policies or personalities.

Sandro Marcos joining Lakas-CMD matters only insofar as it reveals the truth that every Filipino already knows: our political parties are empty vessels. Our politicians are free agents. Our democracy is a family business.

And the family is fighting over the inheritance.

Louis ‘Barok’ C. Biraogo is the proprietor of Kweba ni Barok, a blog whose motto — “KWEntuhan at BAlitaktakan” — translates roughly to “unsolicited commentary with matching receipts.”