The Federal Elections Commission (FEC) has been unable to perform it's duties to prosecute Donald Trump for illegally soliciting campaign contributions from foreign officials due to Republican Congressional interference.
According to the Federal Election Commission, political candidates are not allowed to receive campaign donations from foreign nationals. Foreign nationals include: foreign governments, political parties, corporations, associations, partnerships, persons with foreign citizenship, and non-permanent resident immigrants. Permanent residents, or "green card" holders, may donate to political candidates.