President Barack Obama's keynote speech last night crystallized the Democratic argument against Donald Trump, casting the Republican as a threat to American values and that "homegrown demagogues" will inevitably fail at the ballot box.

"We don't look to be ruled," he said in an optimistic address meant to contrast with Trump's more dour take on America's fate at last week's Republican National Convention. That speech was marked by sweeping promises to end terror and keep Americans safe, along with scathing attacks of the nation's economy, foreign standing and morale after eight years of Democratic control.

As Obama and other Democrats took the stage, the New York businessman fired off tweets and emails to reporters to try to wrest back the spotlight.

In one missive, Trump called it a "sad night" for Democrats full of "empty rhetoric." In another, sent just 14 minutes earlier, he painted Obamacare as an "absolute disaster." Five minutes before that it was a note with the blaring headline: "Violent crime rising across the country." And five minutes earlier, a dispatch alleged to outline "Obama's terrible legacy of middle class destruction."

Around the same time, a spate of tweets:

Contrast, indeed.

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Top Donald Trump surrogate Newt Gingrich was complimentary of Barack Obama's speech last night in an appearance on Fox News, but he predicted the president's remarks would do little to aid Democratic nominee Hillary Clinton

"In the end, she is Hillary," the former Georgia lawmaker and House speaker said on "Hannity." "She can't get away from being Hillary. And in the end, all of these nice things are going to fall apart."

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Well, this is curious. From New York Magazine:

Melania Trump's personal website now redirects to her husband's business site.

Melania Trump's website has been mysteriously scrubbed from the internet, leaving no trace of the potential First Lady's biography, which has come under scrutiny in recent days.

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Fresh off his decisive victory over state Sen. Mike Crane, Drew Ferguson took his first act as the 3rd congressional District's GOP nominee -- cutting a $2,000 check to the Donald Trump campaign:

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Democratic vice presidential nominee Tim Kaine officially stepped into the role of No. 1 Donald Trump attack dog yesterday. During his prime-time address last night, the Virginia U.S. senator invoked one of Trump's signature catchphrases -- "believe me" -- to make his case for why the Republican nominee was unfit to lead. 

Earlier in the day, Kaine had a little bit of fun. When asked on ABC's "Good Morning America" about Trump's statement that he was a poor governor of New Jersey, he agreed.

"Yesterday he said I was a lousy governor of New Jersey. And he's right," he said. "I wasn't even ever governor of New Jersey," 

Read our analysis of DNC Night Three here.