Pipe bombs?
Doesn't move the needle much.
10 years ago maybe a little bit but the mainstream media's ability to spin and influence has decreased so dramatically.
In 2018, these events are now dissected online via forums, social media or alternative media commentators on Twitter or YouTube.
The general consensus I've gathered is that this was likely some person connected or supportive of the Left so it really is a moot point in regards to hurting Republican candidates.
Besides, I think people have pretty well made up their minds at this point and the Democrats just are not getting their people out in early voting like they should. Look at that post Yamcha put up a few days ago. Out of 8 battleground Senate races, 7 of them were favoring Republicans and Democrats SHOULD be well ahead in early voting. It's just not happening. They are not mobilizing their potential constituents to the ballot boxes.
Even after 2 years of non stop assault towards Trump, they do not even have a prayer of retaking Congress. Total disaster for their party.