Former Democratic senator Claire McCaskill ripped reports of Democratic infighting, asking "What are they thinking?" during an appearance on Meet the Press. 
Several Democrats railed against dark money groups during the 2018 midterm elections, but a new report shows that liberal groups outspent conservative groups, spending more than half of the $150 million that went towards bankrolling House, Senate, and statewide campaigns.
Rep. Alexandria Ocasio-Cortez (D., N.Y.), who was sworn into Congress for the first time less than two weeks ago, is already facing scrutiny from some Democratic senators who say her views don't represent those of their constituents.
Former Sen. Claire McCaskill (D., Mo.) has joined MSNBC and NBC News as a political analyst.
Some congressional Democrats are already frustrated with upstart freshman Rep. Alexandria Ocasio-Cortez's tendency to butt heads with members of her own party, according to a number of lawmakers and aides. 
