In response Democrats PissMeOff to his Publication
I'm pretty sure that the "protesters" violated 18 U.S. Code § 248 - Freedom of access to clinic entrances.
https://www.law.cornell.edu/uscode/text/18/248
18 U.S. Code § 248 - Freedom of access to clinic entrances | U.S. Code | US Law | LII / Legal Information Institute
https://www.law.cornell.edu/uscode/text/18/248
