(CNN) After a decidedly rocky run-up to the official announcement of his presidential candidacy, Joe Biden has to be happy with where he finds himself in the race today -- particularly after a 24-hour run that simply could not have gone any better for him.

It all began Monday morning when President Donald Trump took to Twitter -- as he does -- to launch a series of attacks on Biden.

"The Media (Fake News) is pushing Sleepy Joe hard," tweeted Trump . "Funny, I'm only here because of Biden & Obama. They didn't do the job and now you have Trump, who is getting it done - big time!" It was one of five(!) tweets about Biden that Trump sent on the day -- even as his advisers were asking him to avoid singling out any specific 2020 candidate for fear of elevating them.

Uh, you think? The way Biden wins this 20-way primary isn't as a fresh face or as the most liberal candidate. He wins by convincing Democrats that the only thing that really matters is beating Trump -- and that he is the best person in the race to do that.

And the best possible way for Biden to make the case is to have Trump single him out for attacks. I guarantee you that Biden's campaign made sure every Democratic activist in an early state and every donor in the country saw Trump's tweets within minutes of the President typing them out. See, we told you Biden is the one Trump fears the most! Trump is attacking Biden because he knows that Biden is the Democrat who can take the industrial Midwest -- and the presidency -- from him!

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