Not childish at all.
This Republican party will keep hammering away at Hillary. The video I watched yesterday discussed the "thirty thousand emails Hillary deleted to hide from us" and how a "Senate investigation decided Benghazi was preventable" (although the State Department asked for more funds and was denied). Just like the commercials during the last election saying "Obama was doing nothing to stop Ebola from coming to the US" yet... Here are, Ebola free.
The last four years of the Republican White House was unmitigated disaster that brought the entire world to it's knees. No matter who the Republican party put up against Obama they would have lost. Since then the Republican party plan is "Let's not do our job, let's just make mountains out of molehills and try embarrass the other side".
When we needed them the most, the Republican party has become a complete and utter embarrassment.