Romney Has 2-to-1 Lead Among Republican Voters in New York With three weeks to go before New York's presidential primary, Mitt Romney holds a more than two-to-one lead among likely Republican voters, according to a new poll released on Thursday. Fifty-four percent of likely voters in the poll, conducted by Quinnipiac University from last Wednesday to Monday, said they would vote for Mr. Romney, who swept the primaries in Wisconsin, Maryland and the District of Columbia on Tuesday to strengthen his commanding lead in the race. He was trailed by Rick Santorum, with 21 percent; Newt Gingrich, with 9 percent; and Ron Paul, with 8 percent. The poll, conducted by telephone of 372 likely Republican primary voters, has a margin of sampling error of plus or minus 5 percentage points. New York will hold its presidential primary on April 24, as will Connecticut, Delaware, Pennsylvania and Rhode Island. New York Republican leaders are excited that, despite its relatively late date, the primary will most likely be meaningful; they announced Wednesday that Mr. Santorum and Mr. Gingrich would attend the state party's annual dinner in Midtown Manhattan on April 19, and a spokesman for Mr. Romney said he was planning a trip to New York in the near future as well. Eight percent of the likely Republican voters in the poll said they were undecided, while 39 percent of those who named a candidate said they could change their mind before they ultimately cast their ballots. But the poll found good news for Democrats as they look toward the general election - at least in New York. Among New York voters, President Obama held a lead of 56 percent to 33 percent over Mr. Romney, and 59 to 30 percent over Mr. Santorum. The other major Republican primary in New York this year - for one of the state's seats in the United States Senate - appears to remain wide open. The poll found that 57 percent of Republican voters remained undecided in that primary, which will be held June 26. Among those who supported a candidate, 19 percent said they would vote for Representative Bob Turner, who represents portions of Brooklyn and Queens; 11 percent for Wendy E. Long, a Manhattan lawyer; and 7 percent for George Maragos, the Nassau County comptroller. In a hypothetical general election match-up, however, Senator Kirsten E. Gillibrand, a Democrat, held leads of more than two-to-one over each of those Republicans. For the questions on the Senate primary and the general election, the poll included 1,597 registered voters who were surveyed by telephone, and has a margin of sampling error of plus or minus 3 percentage points.