The T-shirt was emblazoned with the image of a Confederate flag with a noose in the middle and the words "Mississippi Justice."
"When I won the presidency, at least my side felt pretty good," Obama said during a Miami rally on Friday.
"Don't be hoodwinked. Don't be bamboozled. Don't fall for the 'Okeydoke,'" said former President Barack Obama.
"Now is not the time to consider articles of impeachment," House Minority Leader Nancy Pelosi and Democratic Minority Whip Steny Hoyer previously stated.
The Trump impeachment guide contains "steps we must take to remove one of the gravest dangers our country has ever confronted."
"When Republicans can't win at the ballot box, they rig the election system to hold Texans back," the deputy executive director for Texas Democrats told Newsweek.
And Trump is reportedly planning to campaign hard for Republicans in 2018.