Washington Bids Farewell to Lindsey Graham at His Funeral

Lindsey Graham's funeral just wrapped in Washington ... and politicians from both parties gathered in the nation's capital to say goodbye to the longtime South Carolina senator.

President Trump delivered remarks during the funeral at Washington National Cathedral. He recalled his rocky start with Graham ... joking that leaking the senator's personal cell number during the 2016 campaign somehow became "the beginning of a friendship."

After Trump finished his speech, he took a moment to double-tap on Graham's casket before returning to his seat.

The service follows a Capitol Rotunda tribute, where Vice President JD Vance remembered Graham as a lawmaker who could go to battle without making enemies.

Vance called Graham "impossible not to like" and praised him as a man who could "disagree with you without being disagreeable."

Congress bussed together to the funeral ... and Sen. John Kennedy told TMZ DC's Charlie the bipartisan bus ride would resemble "the game room of a mental hospital" ... with every Republican and Democrat senator packed aboard.

World leaders gathered for Tuesday's ceremony, with Israel's Prime Minister Benjamin Netanyahu and Ukraine's President Volodymyr Zelenskyy among the dignitaries attending.

We were on Capitol Hill Tuesday morning ... capturing Graham's casket as it arrived at the Capitol Rotunda.

As TMZ previously reported ... Graham died July 11 at 71 from a tear in his aorta caused by heart disease. He will be laid to rest Wednesday in South Carolina.