PHILADELPHIA -- Jason Carter, the 2014 Democratic nominee for governor, will address the Democratic National Convention here tonight to introduce a video message from his grandfather, former President Jimmy Carter. Here are five things to know about the younger Carter.

1. He's probably running again: While he's remained tight-lipped publicly about whether he plans another bid for governor, nearly everyone inside the Georgia Democratic Party believes he will make another run in 2020 when Gov. Nathan Deal is term-limited and not on the ballot again.

2. Message to Georgia delegates: Carter spoke to the Georgia delegation here Tuesday morning. He warned voters against Donald Trump and the harsh language coming out of the Republican camp. "It's amazing to me that I can pine for the days of George Bush, in terms of people who at least act like they have some compassion."

3. Already stepping into his grandfather's shoes: Carter took over as chairman of the board of the Carter Center after President Carter announced he was fighting cancer. The job has had Carter traveling the globe continuing the Center's work.

4. Endorsed Clinton early: Carter was an early Clinton backer. Carter and other top Democrats quickly signed up to support Hillary Clinton's bid for the nomination, helping her avoid the 2008 divide that saw party leaders split between her and Barack Obama.

5. Rejoining the public eye: After his 2014 loss in the race for governor, Carter kept largely quiet. No longer in the state Senate, he returned to his family life and law practice. That began to change late last year when he went to work for the Carter Center and made his forays back into the public sphere. Tonight's speech at the DNC could be a sign of more to come. .