TODAY SCHEDULE (all times ET): —9:15 am: Sen. John Kerry addresses the Building Trades Legislative Conference via satellite —9:30 am: Off-camera gaggle by White House Press Secretary Scott McClellan —9:30 am: The Senate convenes for morning business —10:00 am: Reps. George Miller and Barney Frank and Sen. Barbara Boxer hold a news conference to discuss legal protections for gay people, Washington, DC —10:00 am: Boston Police Department holds a press briefing on security measures for the Democratic National Convention at police headquarters, Boston, Mass. —10:00 am: The United States Supreme Court meets to hear arguments —10:00 am: The House of Representatives convenes for legislative business —10:00 am: Sens. Rick Santorum, Jeff Sessions and James Talent hold a news conference to discuss the impacts of the 1996 welfare reforms, Capitol Hill —10:05 am: Sen. Kerry attends a roundtable with workers at the Boston Carpenters Apprenticeship and Training Center, Boston, Mass. —10:30 am: First Lady Laura Bush and Mrs. Marta Sahagun de Fox visit Martha's Table, Washington, D.C. —10:30 am: House Speaker Dennis Hastert and Japanese Ambassador Ryozo Kato plant a cherry blossom tree at the Southeast lawn, Capitol Hill —11:00 am: RNC and Bush-Cheney campaign hold news conference announcing FEC complaint —11:30 am: Sen. Kerry receives shoulder surgery at Massachusetts General Hospital, Boston, Mass. —11:30 am: Senate Majority Leader Bill Frist meets with Iraqi Ambassador Rend Rahim Francke, Capitol Hill —12:00 pm: President Bush participates in a luncheon with members of the Baseball Hall of Fame, the White House —1:00 pm: Politics Live on ABC News Live and AOL —1:00 pm: On camera briefing by Secretary McClellan —2:00 pm: Michael Jackson attends a private meeting with Rep. Sheila Jackson Lee —2:30 pm: The AFL-CIO holds a news conference with House Minority Leader Nancy Pelosi, Senate Minority Leader Tom Daschle, Sen. Ted Kennedy and Sen. Debbie Stabenow, Capitol Hill —3:00 pm: Dr. Bertram Zains conducts a conference call on Kerry's condition —4:30 pm: Moveon.org joins the AFL-CIO in a rally outside a Bush fundraiser in support of overtime pay at the Marriott Wardman Hotel, Washington, D.C. —6:00 pm: President and Mrs. Bush attend a Bush-Cheney fundraiser dinner at the Marriott, Washington, D.C. —6:00 pm: Sen. Frist attends the Cherry Blossom Congressional Reception, Capitol Hill —7:30 pm: Gov. Howard Dean speaks at the 21st Century Democrats annual dinner at the Mayflower Hotel, Washington, D.C. —11:00 pm: Karen Hughes appears on Comedy Central's "Daily Show with Jon Stewart"