SFGate:

House Speaker Nancy Pelosi on Friday canceled her plans to travel by commercial plane to visit U.S. troops in Afghanistan, saying President Donald Trump had caused a security risk by talking about the trip.

It was the latest twist in what has become a Washington game of brinkmanship between Pelosi and Trump, playing out against the stalled negotiations over how to end the partial government shutdown.

Earlier in the week, Pelosi had asked Trump to reschedule his Jan. 29 State of the Union address, citing security issues at a time when the Homeland Security Department and other agencies remain unfunded.

Trump responded by canceling the military plane that was to have carried Pelosi and a congressional delegation to Afghanistan on the previously undisclosed troop visit. Trump suggested she travel by commercial plane instead.

Trump had belittled the trip as a "public relations event" — even though he had just made a similar warzone stop — and said it would be best if Pelosi remained in Washington to negotiate to reopen the government.

"Obviously, if you would like to make your journey by flying commercial, that would certainly be your prerogative," wrote Trump, who had been smarting since Pelosi, the day before, called on him to postpone State of the Union address.

On Friday, Pelosi announced that her plan to travel by commercial plane had been "leaked" by the White House.

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