McConnell backs off, abruptly eases impeachment trial limits

Sen. Lisa Murkowski, R-Alaska, arrives at the Senate for the start of the impeachment trial of President Donald Trump on charges of abuse of power and obstruction of Congress, at the Capitol in Washington, Tuesday, Jan. 21, 2020. (AP Photo/J. Scott Applewhite)
In this image from video, White House counsel Pat Cipollone speaks in favor of of Senate Resolution 483, the organizing resolution for the impeachment trial against President Donald Trump in the Senate at the U.S. Capitol in Washington, Tuesday, Jan. 21, 2020. (Senate Television via AP)
In this image from video, personal attorney to President Donald Trump, Jay Sekulow, speaks against an amendment offered by Senate Minority Leader Chuck Schumer, D-N.Y., during the impeachment trial against President Donald Trump in the Senate at the U.S. Capitol in Washington, Tuesday, Jan. 21, 2020. (Senate Television via AP)
In this image from video, impeachment manager Rep. Zoe Lofgren, D-Calif., speaks in support of an amendment offered by Sen. Chuck Schumer, D-N.Y., during the impeachment trial against President Donald Trump in the Senate at the U.S. Capitol in Washington, Tuesday, Jan. 21, 2020. (Senate Television via AP)
This artist sketch depicts White House counsel Pat Cipollone speaking in the Senate chamber during the impeachment trial against President Donald Trump on charges of abuse of power and obstruction of Congress, at the Capitol in Washington, Tuesday, Jan. 21, 2020. (Dana Verkouteren via AP)
In this image from video, impeachment manager Rep. Adam Schiff, D-Calif., speaks during the impeachment trial against President Donald Trump in the Senate at the U.S. Capitol in Washington, Tuesday, Jan. 21, 2020. (Senate Television via AP)

Senate majority leader, Sen. Mitch McConnell, R-Ky., right, walks back to the Senate chamber at the Capitol Tuesday in Washington. (AP Photo/Steve Helber)

WASHINGTON — The U.S. Senate plunged into President Donald Trump’s impeachment trial on Tuesday with Republicans abruptly abandoning plans to cram opening arguments into two late-night sessions and Democrats arguing for more witnesses to expose Trump’s “trifecta” of offenses.