<prompt> Translate the following text to EnglishMahakama ya Juu ya Marekani imepinga marekebisho ya sheria ya kwanza ya Marekani ambayo yalipunguza uwezo wa wanasheria wa kuwakilisha wateja wao katika kesi za misaada.  <response>: Supreme Court decision last year that struck down on First Amendment grounds a law that limited what lawyers could argue when representing clients in welfare cases. 