State Sen. Dan Bishop, once a sponsor of North Carolina’s “bathroom bill” and now a candidate for the open 9th District House seat, is tying the race’s lone Democrat to “left-wing radicals” and “socialists” in his first campaign video.

Bishop is one of 10 Republicans competing in the GOP primary for the chance to face Democrat Dan McCready in a special election, which was called after a ballot harvesting scheme tainted a November victory for Republican Mark Harris.

[Mark Harris will not run in North Carolina’s 9th District special election]

In the Charlotte Republican’s video, the narrator labels Democratic lawmakers “left-wing radicals” and “socialists” letting undocumented immigrants “flood” across the southern border, attempting to grab Americans’ guns and leaving babies that survived abortion for dead.

The black-and-white ad features video clips of mostly female Democratic lawmakers, including Rep. Alexandria Ocasio-Cortez criticizing President Donald Trump for his racist comments, Rep. Ilhan Omar defending her own controversial comments about Israel and Rep. Rashida Tlaib vowing to “impeach the motherf—er,” referring to Trump.

“Dan McCready’s Democratic party has gone just plain crazy,” the narrator said, tying the lone Democrat in the 9th District race to his potential future colleagues.

Watch: Video from Charlotte Republican Dan McCready 

Bishop gained national notoriety in 2016 for championing North Carolina’s House Bill 2. The state law, among other provisions, nullified local nondiscrimination ordinances and required transgender people to use the public restroom matching the sex on their birth certificate in government buildings. 

Trump carried the 9th District by about 12 points in 2016. But the November midterm result, which was thrown out in February, was much closer— Republican Mark Harris led Democrat Dan McCready by 905 votes. 

The special election is scheduled for Sept. 10 at the earliest.

Inside Elections with Nathan L. Gonzales rates the special election a Toss-up.

The North Carolina state elections board did not certify Harris’ victory after it discovered substantial evidence of a “coordinated, unlawful and substantially resourced absentee ballot scheme operation,” including efforts of a cover-up, by a consultant working for Harris’ campaign.

Harris has decided not to run for the GOP nomination in the special election.