Danielle Kurtzleben

Six Democratic presidential candidates will participate in the last debate before the Iowa caucuses Tuesday night in Des Moines, as the campaign has gotten more combative among top contenders.

Attacks among Democratic presidential campaigns are getting sharper. Amid simmering hostility, the candidates will be face-to-face tonight in Des Moines for the last debate before the Iowa caucuses.

The survey, from NPR and partners, shows how the "1%" compare with others on issues including inequality, health care access and what it takes to get ahead in America.

If state lawmakers pass the ERA, Virginia would become the 38th state to ratify it, and an amendment needs 38 states to be added to the Constitution. But a new legal opinion adds to the complexity.

Virginia is poised to become the 38th state to ratify the Equal Rights Amendment.

The Iowa caucuses are one month from Friday. The candidates are campaigning frantically, and it's clear that many voters' minds are far from made up.

The Massachusetts senator has pushed corporate regulation and fighting corruption as campaign centerpieces since early on. So how did "Medicare for All" come to define her platform while support slid?

Elizabeth Warren's campaign has seen a slump in support recently, as she has committed to details of a highly-anticipated Medicare for All plan. Has her handling of the issue turned voters off?

Buttigieg has criticized plans that make public college "free for even the kids of millionaires," opening up an argument in the Democratic primary campaign over the role of government.

Pete Buttigieg wants to offer free public college to low and middle income families. Bernie Sanders and Elizabeth Warren would offer free college to everyone, including the wealthy.

Elizabeth Warren and Bernie Sanders are big champions of taxing the very rich on their wealth, not just income. The public is behind it, but there are big challenges to implementing the plan.

Marianne Williamson by far gets most of her money from women. Meanwhile, Donald Trump and Andrew Yang get relatively little of their money from women.

Former Vice President Joe Biden attacked Sen. Elizabeth Warren's attitude on the campaign trail, drawing some accusations of sexism.

Recent polling shows that a voter's gender can be a factor in their views on gun control, showing a divide heightened beyond the typical partisan split.

Sen. Elizabeth Warren released her plan to pay for single-payer health care without imposing new taxes on the middle class. She's looking to employers and billionaires, in addition to other sources.

The Massachusetts senator has been under pressure to say whether she would raise taxes on the middle class to fund single-payer health care. Her plan opts for a variety of other revenue sources.

"You're asking me to come up with an exact detailed plan of ... how much you're going to pay more in taxes, how much I'm going to pay," Sanders said. "I don't think I have to do that right now."

NPR's Danielle Kurtzleben talks about whether automation and robots, or bad trade policies pose a bigger threat to jobs in America.

Which poses a bigger threat to jobs in America: automation and robots, or bad trade policies?

Democratic presidential candidates have divergent world views on whether automation or trade policy is to blame for lost jobs.