Clinton Campaign's Early Morning Tweets a Nod to Trump?

The tweets addressed Clinton's proposed "National Service Reserve."

"Who gets up at 3 o'clock in the morning to engage in a Twitter attack against a former Miss Universe," Clinton asked the crowd of 2,300. "I mean, he hurled as many insults as he could. Really? Why does he do things like that?"

Fast forward several hours to 3:20 a.m. Saturday, and the following tweet popped up on the @HillaryClinton twitter feed: "It's 3:20am. As good a time as any to tweet about national service."

It's important to note, though, that the bio of the Clinton campaign Twitter account notes, "Tweets from Hillary signed –H." None of the tweets posted this morning were signed by Clinton.

Clinton's "National Service Reserve" would allow people to serve their communities without a full-time commitment.

Four tweets then followed the initial tweet.

ABC News' Rex Sakamoto contributed to this report.