Of course, it’s too early for anyone on the Trump campaign to predict which candidate — or candidates — will still be in the race by the time Democrats host their mid-July nominating convention in Milwaukee. The field remains as large as it was heading into Iowa, where caucus results faced significant delays following the nightmarish failure of the state party’s reporting app. A decisive victory for Biden in South Carolina, where other candidates have failed to cut into his support among black voters, could shake up the horse race later this month.

There is also looming uncertainty surrounding Mike Bloomberg’s quarter-billion-dollar campaign and cleanup-or-bust strategy for Super Tuesday, when 14 states will vote on March 3. The former New York mayor and Trump traded insults on Super Bowl Sunday after both men aired campaign ads during the expensive commercial breaks, and the president described Bloomberg as “very little” during an interview with Fox News’ Sean Hannity. (Bloomberg is 5 feet 8 inches tall.)

“Mini Mike is part of the Fake News,” Trump wrote in a tweet, taking aim at the media company Bloomberg News that bears the candidate’s name.

Some Trump critics have suggested the president is unnerved by Bloomberg’s unprecedented spending and willingness to go toe-to-toe with him. A person close to the president said he has been fixated on Bloomberg since the beginning of the year, repeatedly bringing up the former mayor’s growing campaign operation, which surpassed 1,000 staffers last month and includes a number of seasoned Democratic campaign veterans, and the ads he has blanketed the nation’s airwaves with.

On Friday, a White House official said Trump was irritated when he learned that former Navy Secretary Richard Spencer, who was pushed out of the administration last November, planned to endorse Bloomberg during a campaign stop in Virginia.

Others said Trump, an avid consumer of cable news, is talking about Bloomberg only because he constantly sees his ads on TV, and that his campaign views the former mayor as more disruptive to the Democratic Party than threatening to Trump.

“He’s very reactive to what he sees and the fact that Bloomberg’s ads are all over better explains the attacks on him than Trump being fearful of him,” said the GOP operative, adding that Bloomberg “is the definition of the rich technocrat that the Bernie wing [of the Democratic party] can’t stand.”