Pushing her would definitely be the key to beating her, if the GOP were so inclined.
That's why those "listening" sessions her handlers set up for her are always carefully scripted events with hand picked "ordinary citizens" talking with her in a diner or coffee shop. If pressed hard enough with legitimate, tough questions in a public setting, she just might have a complete meltdown and give the public a glimpse of the real, lamp-throwing Hillary.
True. Gentlemanly losers, like McCain or Romney would never have pushed Hillary. Good thing they are not in the race.