Massachusetts Sen. Elizabeth Warren spent a weekend in Ohio revving up Democratic base voters by laying into Republican Donald Trump, calling him everything from a "nasty little bully" to a man with a "dark and ugly soul."
"I know that presidential races can get intense.
I know that people can sometimes say things they won't mean.
But Donald Trump has repeatedly invited his followers to commit a terrible act of violence on his opponents."
Warren's criticisms echoed a speech delivered by Clinton’s primary rival, Senator Bernie Sanders, earlier in the day.
Speaking at Kent State, Sanders said: “The cornerstone of Donald Trump’s campaign is bigotry.”