WASHINGTON — Get ready for Round 2.
Tonight's presidential debate will mark only the second time that Democratic presidential candidates Hillary Clinton and Bernie Sanders have engaged in a one-on-one faceoff.
The two-hour debate at the University of Wisconsin-Milwaukee, airing on PBS starting at 9 p.m., will be the last before a series of contests, in Nevada and South Carolina as well as on Super Tuesday, March 1. The debate will stream live on PBS' NewsHour's website.
Here's what to look for:
Clinton's strategy
Clinton must decide how she will alter her strategy two days after her 20-point loss to Sanders in New Hampshire, a state where she has enjoyed success in the past, and a week after her disappointing razor-thin win in the Iowa caucuses.
Foreign policy
Sanders, an independent senator from Vermont, often seems a bit out of his element when speaking about foreign policy, especially when compared to Clinton, a former secretary of state.
Hours after the terrorist attack in November in Paris, Sanders barely mentioned terrorism in a debate when asked — totaling about 20 seconds — before switching back to his standard stump speech.
Wall Street money
Clinton needs to find a better way to respond to criticism that she and her campaign accepted donations and speaking fees from Wall Street, including Goldman Sachs.
Clinton had been hammered for saying she did not regret accepting $675,000 for three speeches from Goldman Sachs. "Well, I don't know. That's what they offered," she said with a shrug.
Minimum wage
In Nevada, home to the next Democratic contest Feb. 20, activists are pushing to raise the minimum wage, and may get the question on the ballot in November.
Democrats have been working to increase the federal minimum wage, but some — including Clinton and Sanders — disagree on the amount.
Sanders introduced legislation to hike the federal minimum wage to $15 an hour.
Clinton prefers $12 an hour.