In a blow to Democrats, Republicans have successfully stopped a bill that would have protected voting rights.
In an ad, Lucas Kunce called out Republican Mark McCloskey, who notoriously pointed a gun at racial justice protesters walking by his mansion last year.
Under Trump, $3 trillion was added to the national debt before the pandemic while tax revenue was slashed by $1.5 trillion, Wallace reminded the Republican.
Lucas Kunce, a crusader against corporate consolidation, joins a potentially crowded Democratic field in a solidly Republican state.
The St. Louis Post-Dispatch editorial board ripped the Republican senators for "bringing additional embarrassment to the state."
The Missouri Republican instead suggested moving on and focusing on the next administration.
Sen. Roy Blunt acknowledged that the election's results for Joe Biden are unlikely to change but said Trump's lawyers should make their case.
"Their statues pay homage to hate, not heritage. They must be removed," the House speaker said.
Trump has called for the "outright dismissal" of the charges, but several Republican senators have said they won’t support such a move.
The Senate majority leader is facing new pressure to act on stalled election security bills.