On CNN’s State of the Union, Democratic Sen. Chris Murphy tells Dana Bash that President Biden “needs to do more” to show voters he’s up to the job and able to defeat Donald Trump. Then, potential Trump VP pick Sen. Marco Rubio joins Dana to discuss Trump’s imminent decision on who should be his running mate. Finally, Democratic Rep. Debbie Dingell, CNN Senior Political Commentator Scott Jennings, CNN Political Commentator Shermichael Singleton, and Democratic strategist Doug Thornell join Dana to break down the crisis embroiling President Biden’s re-election effort. The panel also discusses how much of an impact Trump’s VP pick will have on the race.