Republican voters are most sharply divided by education. Among those GOP voters who hold college degrees, the race is a close contest between the top four contenders, with Cruz slightly in front at 22%, Carson and Rubio tied at 19% and Trump at 18%. Among those without college degrees, Trump holds a runaway lead: 46% support the businessman, compared with 12% for Cruz, 11% for Carson and just 8% for Rubio…

The poll reflects Trump’s dominance over the rest of the field on the issues voters deem most important to them. He holds massive margins over other Republicans as the candidate most trusted to handle the economy (at 55%, Trump stands 46 percentage points over his nearest competitor), the federal budget (51%, up 41 points), illegal immigration (48%, up 34 points), ISIS (46%, up 31 points) and foreign policy (30%, up 13 points)…

On immigration, an issue that has been a focal point of Trump’s campaign, most Americans say the government should not attempt to deport all people living in the country illegally (63%), and even more say such a mass deportation wouldn’t be possible (81%). About half say such an effort would be harmful to the economy (47%), while about 3 in 10 say it would help (29%).

Among Republicans, a narrow majority (53%) think the government should try to deport all of the estimated 11 million immigrants currently living in the U.S. illegally, but most think it wouldn’t ultimately be possible to achieve (73%).