Sen. Tim KaineTimothy (Tim) Michael KaineThe Hill's Morning Report - White House, Congress: Urgency of now around budget Overnight Health Care — Presented by PCMA — McConnell, Kaine offer bill to raise tobacco buying age to 21 | Measles outbreak spreads to 24 states | Pro-ObamaCare group launches ad blitz to protect Dems McConnell, Kaine introduce bill to raise tobacco purchasing age from 18 to 21 MORE (D-Va.) said Thursday he thinks the Democratic Party is quickly becoming unified.

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"I was a big Obama guy in '08 and then was part of the team to try to bring everybody together and get the [Hillary] Clinton supporters on board with the Obama supporters and pull all of us together," the Democratic vice presidential nominee said on ABC News's "Good Morning America."

"I actually think where we are now — we're further ahead than we were eight years ago in getting people to unify."

Kaine also commended Sen. Bernie SandersBernie SandersThe Memo: Trump faces steep climb to reelection California Democrats face crisis of credibility after lawsuits Fox's Brit Hume fires back at Trump's criticism of the channel MORE (I-Vt.) for his speech Monday night at the Democratic National Convention.

"The Bernie supporters I know and Bernie Sanders — they understand who Hillary is and they understand that Donald TrumpDonald John TrumpThe Hill's Morning Report - White House, Congress: Urgency of now around budget GOP presses Trump to make a deal on spending Democrats wary of handing Trump a win on infrastructure MORE is a threat to everything that they care about," Kaine said.

"So I feel like we're in real good shape," he continued.

"And you see the way the arc of this convention has gone too. It started off with some turmoil and some churn but there's been a direct arc to unification and an awareness that the stakes are high and we got to pull together to win."