And a happy International Pillow Fight Day to you and you and you.

Why? Why not, says the Urban Playground Movement, which encourages people around the world to organize the free, all-age celebration.

Revelers got into the pillow-swing of things accordingly — check out the whimsical, carefree photos, below. --Sarah Eberspacher

The Senate Judiciary Committee has dropped its subpoena for Paul Manafort, President Trump's onetime campaign chairman, to publicly testify Wednesday during a hearing on Russian meddling in the election because he has agreed to meet with committee investigators, a person with knowledge of the situation told Politico Tuesday.

Earlier in the day, the committee's chairman, Sen. Chuck Grassley (R-Iowa), and ranking member, Sen. Dianne Feinstein (D-Calif.), confirmed that a subpoena had been issued for Manafort after they had been "unable to reach an agreement for a voluntary, transcribed interview with the Judiciary Committee."

Both Manafort and Jared Kushner, Trump's son-in-law and senior adviser, met with the House Intelligence Committee Tuesday in a closed-door session that lasted several hours, detailing the meeting they attended in June 2016 with a Kremlin-linked attorney. Catherine Garcia

Senate Republicans narrowly approved a motion to proceed to debate on health-care legislation Tuesday. The motion passed 51-50, with Vice President Mike Pence stepping in to break the tie after Republican Sens. Susan Collins (Maine) and Lisa Murkowski (Alaska) joined all 48 members of the Democratic caucus in voting no.

While the vote was taking place, President Trump was at the White House meeting with Lebanese Prime Minister Saad Hariri. By the time Trump emerged for his joint press conference with Hariri at the Rose Garden, Pence had already cast the tie-breaking vote. When asked about the razor-thin margin, Trump said Collins and Murkowski's votes were "very sad — for them":

The Senate will now move on to 20 hours of debate on several Republican proposals, including the Senate's Better Care bill and a plan favored by conservative Sen. Rand Paul (R-Ky.) that would constitute a straight repeal of ObamaCare. A "skinny repeal" plan, which was introduced just hours before Tuesday's vote and would center around eliminating ObamaCare's individual mandate, employer mandate, and select taxes, could also come into play.

No single proposal is thought to have the 50 votes necessary to pass. Sen. John McCain (R-Ariz.) returned to Washington on Tuesday afternoon for the first time since being diagnosed with cancer to cast a crucial vote in favor of the motion to proceed, but he may leave the capital by the end of the week. Perhaps not coincidentally, Sen. Dean Heller (R-Nev.) told reporters that party leadership informed him the goal is to pass a health-care plan by Friday — especially wise, given Trump's baiting of Collins and Murkowski may not be effective in spurring them to support the president's agenda. Kimberly Alters

On Tuesday, Sen. John McCain (R-Ariz.) returned to the Senate floor for the first time since he was diagnosed with brain cancer, and he was greeted by a bipartisan standing ovation. McCain came back to Washington just in time to to cast his yes vote on Senate Republicans' motion to proceed on debating the House-passed health-care bill.

Though Republicans and Democrats are deeply divided on the health-care issue — no Democrats voted in favor of the motion to proceed, while all but two Republicans supported it — Politico's Dan Diamond reported that a "parade" of Democrats went over to hug McCain.

After the voting wrapped up and the motion to proceed passed, however, McCain took the floor for a general speech that betrayed his simple "aye" vote on the bill. Though McCain voted in favor of the motion to proceed, he made clear that he would "not vote for the bill as it is today." "It's a shell of a bill right now, we all know that," McCain said, adding that it "seems likely" that "this process ends in failure." He scolded his party for "getting nothing done" because "we keep trying to find a way to win without help from across the aisle."

McCain's critical speech also extended to President Trump. "Whether or not we are of the same party, we are not the president's subordinates," McCain said. "We are his equal." Catch a snippet of McCain's speech below, and read it in full here. Becca Stanek

On Tuesday, the Senate voted in favor of a motion to proceed to debating the House-passed health-care bill. The motion passed 50-50, with Vice President Mike Pence stepping in to break the tie.

Sens. Susan Collins (Maine) and Lisa Murkowski (Alaska) were the only Republicans to vote against the measure. Sen. John McCain (R-Ariz.), who is battling brain cancer, returned to Washington to cast his yes vote amid a round of applause. No Democrats voted in favor.

Lawmakers will now move to voting on the Senate's Better Care bill, along with a straight repeal bill favored by conservative Sen. Rand Paul (R-Ky.). A "skinny repeal" plan, which was introduced just hours before Tuesday's vote and would center around eliminating ObamaCare's individual mandate, the employer mandate, and a few of the health-care law's taxes, would come into play as a third option. Becca Stanek

Protesters' shouts cut through the quiet of the Senate floor Tuesday as lawmakers convened to vote on a motion to proceed to debating the House-passed health-care bill. "Kill the bill! Don't kill us!" protesters chanted as senators began to cast their votes.

The gavel was pounded in an attempt to restore order. "Shame! Shame!" the protesters carried on.

If the motion to proceed passes, the Senate will move on to voting on Senate Republicans' Better Care bill, along with a straight repeal bill. A third option would be the "skinny repeal" plan, a pared-down ObamaCare repeal focused specifically on eliminating the individual mandate. Becca Stanek

As the Senate convened Tuesday to vote on a motion to proceed to debating the House-passed health-care bill, Sen. Bernie Sanders (I-Vt.) fired off a caustic criticism of Senate Republicans' hasty and secretive process. As Sanders underscored in a retweet of Vox's Dylan Scott, the vote Tuesday happened in spite of the fact there was "no final text," " no final CBO score," and "no public hearings."

Sanders deemed the process not just "insulting" — but "undemocratic":

Just as the vote began Tuesday, several uncertain Republican senators came out in support of the motion to proceed. Becca Stanek

Of the 111 brains of deceased NFL players examined in a study published Tuesday in The Journal of the American Medical Association, all but one of the brains showed signs of the neurodegenerative brain disease chronic traumatic encephalopathy (CTE). The disease, found in 110 of 111 NFL players' brains donated for scientific research, is "linked to repeated blows to the head," The New York Times reported. Symptoms of CTE, which can only be diagnosed with an autopsy, include memory loss, confusion, and depression.

The players whose brains were examined spanned every position, from quarterbacks to running backs to linemen. Some players, such as Hall of Famer Ken Stabler, were particularly famous, while others were lesser known. In addition, high school and college players' brains were examined; CTE was found in three of 14 high school players' brains and 48 of 53 college players'.

Neuropathologist Ann McKee warned that there's "a tremendous selection bias" in the study's sampling of brains because the families that donated the brains oftentimes did so because they suspected symptoms of CTE. However, McKee noted the "fact that we were able to gather this many cases" in just the past eight years suggests the disease is "much more common than we previously realized."

McKee acknowledged that it's still not clear "what the incidence is in the general population or in the general population of football players," but she said one thing is clear: "It is no longer debatable whether or not there is a problem in football — there is a problem." Becca Stanek