MSNBC anchor Andrea Mitchell on Wednesday called the decision by Sen. Bernie SandersBernie SandersDrugmaker caps insulin costs at to help diabetes patients during pandemicThe Hill’s Campaign Report: Wisconsin votes despite coronavirus pandemicSen. Brown endorses Biden for presidentMORE (I-Vt.) to suspend his 2020 presidential campaign, leaving former Vice President Joe BidenJoe BidenTrump shakes up WH communications teamThe Hill’s Campaign Report: Wisconsin votes despite coronavirus pandemicThe Intercept’s Ryan Grim says Cuomo is winning over criticsMORE as the presumptive nominee, a “worst-case scenario” for President TrumpDonald John TrumpCDC updates website to remove dosage guidance on drug touted by TrumpTrump says he’d like economy to reopen ‘with a big bang’ but acknowledges it may be limitedGraham backs Trump, vows no money for WHO in next funding billMORE.

Mitchell’s comment came after Jim Messina, the campaign manager for former President Obama in 2012, called Sanders’s dropping out Trump’s “worst nightmare.” 

On President Trump, this is his worst nightmare, right?” Messina told Mitchell during an exchange on MSNBC. “The Ukraine stuff, everything else hes been doing for the past year-and-a-half trying to make sure Joe Biden is not his opponent, and this morning it is clear Joe Biden will be his opponent, which is the best case scenario for the Democrats.

“This move by Bernie Sanders allows the two big powers in the Democratic party, Barack and in some ways as importantly, Michelle Obama, to come off the sidelines and get involved,” Messina added.

“This is the worse-case scenario for President Trump,” Mitchell later concurred. “But he does have a megaphone and a platform here with these daily [coronavirus task force briefings], which no matter how badly the administration is being criticized … He still is gaining a lot of traction and certainly shutting out Joe Biden and his campaign efforts since Super Tuesday.”

Trump has seen his approval ratings improve amid the coronavirus, which has left Biden and Sanders largely sidelined and unable to campaign, though polls have generally shown Biden maintaining his lead over the president.