Republican presidential candidate Donald Trump is really unpopular in his home state of New York. And according to a new poll Monday, it's only getting worse.

A survey from New York State's Sienna College found that Trump trails his Democratic counterpart Hillary Clinton by a wide margin in the state and the GOP's favorability ratings are dismal. Nearly three-quarters of registered New York voters have a negative view of Trump, while 51 percent hold a positive view of Clinton. Even many Republicans, Trump's party, hold a negative view of the GOP candidate. 

"Clinton’s favorability rating inched up to 51-46 percent from 50-47 percent in June and Trump’s continued to slide hitting his all-time low favorability rating, a negative 24-72 percent," said Siena College pollster Steven Greenberg in a press release. "A bare majority of Republicans view Trump favorably."

This has all led to a massive lead in New York State for Clinton. Expanding on what was already a sizeable margin, Clinton now holds a 30-point lead over Donald Trump, 57 to 27 percent, in a two-way matchup, according to the Sienna poll. Clinton also led a potential four-way race with 50 percent of the vote, compared to Trump at 25 percent, Libertarian Gary Johnson at nine percent and the Green Party's Jill Stein at 6 percent. The poll surveyed 717 New York State registered voters, was conducted Aug. 7-10 and has a margin of error of plus or minus 4.3 percentage points.

Clinton led Trump in a number of other categories, including being qualified to lead (by 40 percentage points), trustworthiness (by 16 points) and addressing tensions between the police and communities of color (by 33 points).

"Despite Trump’s claims to carry New York, the Empire State seems firmly planted on the blue side of the map," Greenberg said. "New Yorkers have voted Democratic in the last seven presidential elections and there does not appear to be a real threat to end that streak."

Trump has claimed he'll win in New York by a huge margin on his way to the White House, relying on Upstate New York where he's apparently "like the most popular person that has ever lived."

Clinton has regularly led in the polls in New York, the Real Clear Politics average of polls giving her a 17.3 point lead in the state. The national average has her up by 6.8 percentage points.