Senate Majority Leader Mitch McConnell, R-Ky., arrives as Senate Republicans hold leadership elections, on Capitol Hill in Washington, Tuesday, Nov. 10, 2020. (AP Photo / J. Scott Applewhite)

Senate Majority Leader Mitch McConnell said Tuesday there’s “no reason for alarm” as President Donald Trump mounts unfounded legal challenges to President-elect Joe Biden’s election victory.

President Donald Trump speaks to the media while meeting with Senate Majority Leader Mitch McConnell and House Minority Leader Kevin McCarthy in the Oval Office at the White House, Monday, July 20, 2020, in Washington. (AP Photo / Evan Vucci)

Divisions between the White House and Senate Republicans and differences with Democrats posed fresh challenges for a new federal aid package with the U.S. crisis worsening and emergency relief about to expire.

Mayor Lori Lightfoot speaks at a news conference outside Guaranteed Rate Field in Chicago on Tuesday, July 21, 2020. (WTTW News)

Mayor Lori Lightfoot sought to calm fears Tuesday that the president plans to send 150 unidentified, secret federal agents to Chicago, saying she has been told it will not be a “Portland-style” deployment. “We do not welcome dictatorship,” she said. 

Speaker of the House Nancy Pelosi, D-Calif., arrives to meet with the Democratic Caucus at the Capitol in Washington, Tuesday, Jan. 14, 2020. (AP Photo / J. Scott Applewhite)

The U.S. House is set to vote Wednesday to send the articles of impeachment against President Donald Trump to the Senate, and pressure was mounting Tuesday on senators to call fresh witnesses for the historic trial.

President Donald Trump leaves the White House for a campaign trip to Battle Creek, Mich., Wednesday, Dec. 18, 2019 in Washington.(AP Photo / Steve Helber)

President Donald Trump was impeached by the U.S. House of Representatives on Wednesday night, becoming only the third American chief executive to be formally charged under the Constitution’s ultimate remedy for high crimes and misdemeanors.

U.S. Rep. Quigley appears on “Chicago Tonight” on Nov. 25, 2019. (WTTW News)

Nine witnesses in three days made for a packed and dramatic week of public testimony in the House’s impeachment inquiry into President Donald Trump. U.S. Rep. Mike Quigley weighs in on the hearings and next steps.

In this Oct. 17, 2019, file photo U.S. Ambassador to the European Union Gordon Sondland, center, arrives for a interview with the House Committee on Foreign Affairs, House Permanent Select Committee on Intelligence, and House Committee on Oversight and Reform on Capitol Hill in Washington. (AP Photo / Pablo Martinez Monsivais, File)

In a striking reversal, a top diplomat revised his testimony in the House impeachment inquiry to acknowledge that U.S. military aid to Ukraine was being withheld until the foreign ally promised to investigate corruption as President Donald Trump wanted.

U.S. Rep. Mike Quigley appears on “Chicago Tonight” on Oct. 8, 2019.

A conversation with U.S. Rep. Mike Quigley on President Trump’s moves to stall the impeachment inquiry.

Activists rally for the impeachment of President Donald Trump at the Capitol in Washington on Thursday, Sept. 26, 2019. (AP Photo / J. Scott Applewhite)

The explosive details of a whistleblower’s complaint against President Donald Trump provided Democrats on Thursday with a roadmap for their impeachment inquiry. We get reaction from Chicago-area congressmen.

U.S. Rep. Mike Quigley appears on “Chicago Tonight.”

President Donald Trump pushes for a southern border wall as the government shutdown enters its third week. U.S. Rep. Mike Quigley talks about the standoff and what’s next for the Democratic-controlled House.

As special counsel Robert Mueller’s investigation into Russian interference in the 2016 election moves forward, Illinois is in line for some $13 million in federal money to bolster election security.

Republicans and Democrats investigating possible Russian interference in the last presidential election are reportedly at odds. U.S. Rep. Mike Quigley joins us with the latest on the the House Russia investigation.

(Matt Masterson / Chicago Tonight)

Local progressives and elected officials say the time is now to talk gun reform following the deadliest mass shooting in modern U.S. history.

Nearly four months into Donald Trump’s presidency, tension over foreign affairs is flaring up.

Republican lawmakers help President Donald Trump in his first whirlwind week in office. Democratic Congress members join us with their reactions.

Reps. Mike Quigley and Randy Hultgren

Congressmen Mike Quigley and Randy Hultgren join "Chicago Tonight" for a conversation about issues facing Congress, including national security, health care and lead levels in water. They'll also give us their thoughts on the 2016 presidential race.