CASTRO VALLEY (CBS SF) – A man was arrested on suspicion of felony assault and other charges after allegedly attempting to stab a Republican congressional candidate with a switchblade over the weekend at in Castro Valley, according to the Alameda County Sheriff’s Office.

On Sunday, September 9, at approximately 3:45 p.m., deputies working at the Castro Valley Fall Festival were alerted to a possible knife attack at one of the vendor booths.

Deputies arrived at the booth and made contact with the victim, Republican candidate Rudy Peters, who is running against incumbent Rep. Eric Swalwell (D-Dublin) for the 15th congressional district seat

According to witnesses, 35-year-old Castro Valley resident Farzad Fazeli approached Peters at his booth in an aggressive manner and made disparaging, profanity-laced remarks about the Republican party and President Donald Trump.