House Speaker Paul Ryan is far outpacing his GOP primary opponent, according to a new poll that shows him a whopping 66 points ahead of conservative businessman and pro-Trump challenger Paul Nehlen.

Just four days ahead of Wisconsin's Tuesday GOP contest, a Remington Research Group survey of likely Republican primary voters said they would support Ryan 80 percent to Nehlen's 6 percent, with 6 percent still undecided.

The numbers are a boon for Ryan, whose campaign has maintained that recent polls showing the race dramatically tightening were far off their mark and overblown.

The Remington poll, conducted Wednesday and released Friday, found 80 percent of those surveyed had a favorable opinion of Ryan while 14 percent had an unfavorable opinion. The numbers paint a much grimmer picture for Nehlan, with just 16 percent saying they have a favorable opinion of him and 47 percent saying their views are unfavorable with 37 percent registering "no opinion."

The new figures also appear to show that a net positive opinion of Donald Trump in the Wisconsin district Ryan represents is not trickling down to help boost Nehlan. Fifty-two percent of those surveyed had a favorable opinion of the real estate mogul, while 32 percent harbored negative views and 16 percent held no opinion.

The pollsters said they polled 1,157 likely GOP voters and weighted those contacted to match expected turnout demographics for Tuesday's GOP primary. The survey has a margin of error of plus or minus 3 percent.