For sure they BOTH do it....
"Seeking to turn the image of laid-off workers back on President Obama, Mitt Romney's campaign launched an attack advertisement highlighting a California solar panel manufacturer that received more than $500 million in taxpayer funding before going bankrupt and laying off 1,100 workers.
The ad comes after the Obama campaign portrayed Romney as a callous corporate raider whose private-equity firm, Bain Capital, valued profits over workers.
The Romney ad features grainy video clips of Obama and ominous music as a narrator details a series of so-called green energy companies that received billions in taxpayer-backed loan guarantees that ultimately went bankrupt or failed. Worse than just the loss of tax dollars, the narrator says, is that according to a government watchdog report, many of the loan guarantees were offered to Democratic donors' "friends and family."
Romney Attack Ad on Solyndra Looks to Hurt Obama's Likability - The Ballot 2012 (usnews.com)