By 66%-29%, the Republicans and Republican-leaning independents surveyed say it would be better if one of the four candidates now running managed to secure enough delegates to clinch the nomination. Most are happy to see their roller-coaster campaign continue: 57% say the battle isn’t hurting the party.

Meanwhile, President Obama’s standing against two potential Republican rivals has ebbed a bit. Former Massachusetts governor Mitt Romney leads the president 50%-46% among registered voters, Romney’s strongest showing against him to date. Obama edges former Pennsylvania senator Rick Santorum by a single percentage point, 49%-48%.