Long Island Rail Road workers could go on strike as early as May 16 if they cannot reach a deal.
The tentative agreement is expected to protect both nurse and patient safety -- which the nurses' union says was a key reason they decided to strike.
Both sides were at the bargaining table on Sunday, and they say they are inching closer to an agreement.
It's the most progress made during a single day of negotiations so far in the strike, which enters day 26 on Friday.
President Trump said late Thursday that he was ending "all trade negotiations" with Canada because of a television ad opposing U.S. tariffs that he said misstated the facts and called "egregious behavior" aimed at influencing U.S. court decisions.
President Donald Trump on Monday placed a 25% tax on goods imported from Japan and South Korea, citing persistent trade imbalances with the two crucial U.S. allies in Asia.