The APM Research Lab survey asked Americans how they feel about the numbers of immigrants in this country.

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.

Marco Rubio was the surprise beneficiary of heavy GOP turnout and made the fight for evangelicals a three-way contest. Bernie Sanders won with younger voters, but not enough voted for him to win.