2. There was no intentional discrimination/meddling.
A sudden spike of search traffic corresponding with a sudden influx of advertising spending is likely to trigger red flags for the system. 6 hours of downtime for these google ads did damage her campaign, but Gabbard, or anybody, is not entitled to 100% uptime for a service provided by a corporation, except to the degree that it violates a contract/ TOS.
“Google’s discriminatory actions against my campaign are reflective of how dangerous their complete dominance over internet search is, and how the increasing dominance of big tech companies over our public discourse threatens our core American values,” Gabbard said in a statement. “This is a threat to free speech, fair elections and to our democracy, and I intend to fight back on behalf of all Americans.”
Her statement quoted above make me like her less, and I don't feel like I'm a particularly pro-google guy.