Please stay far away from any fundraising activity and any active campaigning. You are certainly welcome to express support, of course, but any active contributions could jeopardize his campaign. So, I am asking you nicely to please refrain from campaigning or getting involved in moneybombs etc. Thanks.
"Despite the general prohibition on foreign national contributions and donations, foreign nationals may lawfully engage in political activity that IS NOT connected with any election to political office at the federal, state, or local levels."