Portman raised eyebrows earlier this month by circulating a political mailer avowing he knows “we are stronger together,” language that echoed Clinton’s campaign slogan. A GOP strategist familiar with the campaign, however, maintained the similarity in language was a coincidence.

In Pennsylvania, Sen. Pat Toomey (R) has released a new ad highlighting the praise he’s received from Clinton’s running mate, Sen. Tim Kaine (D-Va.), who has touted Toomey’s “seriousness, intellect and civility.”

In Florida, Sen. Marco Rubio (R) has declared he’s not interested in pouncing on embarrassing revelations about Clinton’s campaign made public by WikiLeaks. His campaign website this week also proudly displayed the members of the “Democrats for Marco” coalition.

Sen. Kelly Ayotte (R-N.H.), meanwhile, eschews presidential politics on her campaign website. Instead, she stresses bipartisanship, claiming she breaks through “gridlock” to deliver results for New Hampshire.