While liberals have ridiculed the idea that Islamic extremists would come to the US as refugees, this Washington Post article documents that exactly that has been done to get terrorists into Europe.
https://www.washingtonpost.com/world/national-security/how-europes-migra...
The Conservative Caucus is a public policy organization, contributions to which are not tax deductible. The IRS has determined TCC to be a 501(c)(4) organization, exempt from Federal income tax. TCC can receive corporate donations.