For the first time in 40 years, New York's April presidential primary may feature a still-undecided contest on both sides. Hillary Clinton leads Bernie Sanders by 21 points, 55-34, in the most recent Siena poll of New York voters. But Sanders came back from polls showing him behind by 20 points to win Michigan's March 8 primary. On the Republican side, Donald Trump has a 27 point lead, with 45 percent support, in the Siena poll from Feb. 28 to March 3. But Marco Rubio and John Kasich are tied at 18 percent, and Ted Cruz trails at 11 percent. Mark Weiner reports at Syracuse.com that in 1976, New York Republicans chose Gerald Ford over Ronald Reagan in the primary, and eventual presidential winner Jimmy Carter finished third in New York Democratic primary to U.S. Sen. Henry "Scoop" Jackson, of Washington state, and Rep. Morris Udall of Arizona. To register to vote for the 2016 primary election, applications must be postmarked no later than March 25 and received by a board of elections no later than March 30 to be eligible to vote in the primary. Anyone may register at the local board of elections or any state agency participating in the National Voter Registration Act by March 25. Notices of change of address from registered voters must be received by March 30.