[r_barton]

In October 1970, President Nixon was attacked by a mob in San Jose at the same place. Rocks were thrown at his car. Must be something about San Jose.

Here’s a link to an old newspaper story:

Nixon’s San Jose Visit Disrupted By Violence - October 1970
https://news.google.com/newspapers?id=n-IiAAAAIBAJ&sjid=RMsFAAAAIBAJ&pg=4218%2C1553475

[Frank_2001]

Probably thrown by some of those Vietnam War protesting morons, who are now known as “Congressman”, “Professor”, “Boss”, and “Your Honor” /s;)