(CNN) -- Accusations of lies and counter-lies dominated the intensifying November election campaign Thursday, with surrogates and spokespeople for President Barack Obama and certain Republican nominee Mitt Romney trying to cast the other as dishonest and secretive. While neither candidate engaged directly in the political back-and-forth, their teams and supporters launched new attack ads and criticized the opposing contender with increasingly sharp rhetoric. Senate Majority Leader Harry Reid, D-Nevada, said Romney couldn't be confirmed as a dogcatcher because he refuses to make public more of his past income tax returns, while Romney adviser Ed Gillespie labeled as a lie some Obama ads that accused the former Massachusetts governor of outsourcing jobs when he headed Bain Capital.
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NEW: A House Republican says Romney's personal finances are "fair game"
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The campaigns of President Obama and Mitt Romney accuse each other of lying
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The charges involve competing claims about Romney's time at Bain Capital
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Obama sends Vice President Joe Biden to address the NAACP
Meanwhile, Romney's campaign released a new television ad Thursday accusing Obama of spreading "dishonest attacks" that @placeholder specialized in advising companies on outsourcing while Romney was its head.