How much will Donald Trump pad his lead, and what will Ted Cruz do next? Even if Bernie Sanders wins, Hillary Clinton's lead is virtually insurmountable. And the GOP Senate primary is one to watch.

Where will the presidential candidates be on Monday?

Dozens of people had to be turned away from a packed political rally Sunday as the Democratic presidential front runner, Hillary Clinton, worked to stir up excitement before Tuesday's primary.

Donald Trump, with about 75 percent of the delegates, and Hillary Clinton, with 90 percent, are so far ahead in their parties that only the most extraordinary events could prevent their nominations.

At Munster Steel in Hammond, Clinton told a small group of workers and invited guests that revitalizing the manufacturing sector is one of the election's most important issues.

While Hillary Clinton campaigned in Northern Indiana Tuesday, her husband spoke at an event in Indianapolis.

The former senator and two-term governor of Indiana said he participated in early voting to show how easy it is.

It's likely both Republican and Democratic candidates will have to spend time in Indiana before its May 3 primary - the only presidential primary that week.

Hillary Clinton denounced what she called "an artful smear." She challenged Bernie Sanders to identify a vote she had cast or changed to pay off a donor. "Enough is enough," she said.

Hillary Clinton has won the Iowa Democratic caucuses, according to the Iowa Democratic Party. On the Republican side, Ted Cruz upended Donald Trump, while Marco Rubio finished a strong third.