Vermont Sen. Bernie Sanders endorsed Hillary Clinton for the Democratic presidential nomination in New Hampshire on Tuesday against presumptive Republican nominee Donald Trump, and the former rivals are creating the most progressive platform in history.

"Needless to say, I am going to do everything in my power, and I will work as hard as I can, to make sure that Donald Trump does not become president of the United States," Sanders said prior to the endorsement.

The Democratic Party unity comes after a contentious recent meeting between Sanders and House Democrats last week. His campaign successfully secured deals with the party on climate change, criminal justice reform and a $15-an-hour minimum wage.

Even though, Clinton and Sanders disagree on some issues, they hold similar views on most.

Based on information from OnTheIssues, here are their viewpoints in three areas. 

1. Individual rights and domestic issues: Clinton is slightly more conservative than Sanders.

She and Sanders hold somewhat similar positions on issues related to individual rights and domestic issues.

They hold identical positions on women's rights and women's health issues, both strongly disagree that Environmental Protection Agency regulations are too restrictive and both strongly approve of expanding the Affordable Care Act.

But on the question of whether to "keep God in the public sphere," for instance, Sanders strongly disagrees, while Clinton agrees.

2. Defense and international issues: Clinton is far more conservative than Sanders.

Both are fairly close on issues that are related to trade deals, immigration and campaign finance. They don't support the expansion of the military, and they agree that there should be citizenship for illegal immigrants.

They unanimously agree that Citizens United should be overturned and that companies should disclose donations to Super PACs. In the recent Democratic platform meeting in Orlando, Fla., Sanders succeeded in incorporating the idea of a $15-per-hour minimum wage but was unable to block the Trans-Pacific Partnership.

But, for instance, Sanders strongly agrees with the idea of avoiding foreign entanglements, whereas Clinton disagrees with avoiding them.

3. Economic issues: Sanders is slightly more conservative than Clinton.

His progressive campaign relied heavily on issues that addressed the events of the 2008 Great Recession. Sanders' views on Wall Street reform was a big reason that his campaign drew large numbers of young supporters.

He has been vocal about breaking up the big banks, reinstating the Glass-Steagall Act and the inefficiency of Dodd-Frank reforms.

Sanders called for a higher tax "to discourage reckless gambling on Wall Street and encourage productive investments in the job-creating economy."

But Clinton opposes a new Glass-Steagall Act, which was repealed by her husband in 1999. She supports breaking up banks that fail the test under Dodd-Frank and wants to reduce their risky behavior by going "beyond Dodd-Frank."

Both favor higher taxes on the wealthy, and Clinton supports higher taxes on high-frequency trading, whereas Sanders said he wanted to discourage "reckless gambling on Wall Street and encourage productive investments in the job-creating economy."

His plan was to use this revenue to make all public college tuition free.

At this point, Clinton and Sanders have come together, and only their supporters may stand largely divided. Whether his supporters, particularly young voters, will follow him to the Clinton camp is an open question.

This article is commentary by an independent contributor.