Democrats are tying vulnerable Senate incumbents to Trump after his win in Indiana.
The new web ad follows a $2 million TV and digital ad buy in Wisconsin earlier this week.
Ayotte faces a tough reelection fight to keep her Senate seat.
Young will face off with former Rep. Baron Hill in November for the open Senate seat.
The TV ad talks about her son's disability.
A top Koch network group launched ad buys in Wisconsin and Nevada.
Outside groups are using the recess to battle over the Supreme Court.
Strickland will take on GOP Sen. Rob Portman in November.
Almost one quarter of Buckeye State voters are undecided.
Portman and Strickland are locked in a tight battle for Senate in Ohio.