They do like to blame others. In itself, that is not really a problem, because it is generally in human nature to not admit faults in oneself, but what makes it a problem with the repubs is the fact that they are constantly harping on about “personal responsibility”, yet they never take any themselves for their actions or policies they advocate.
When they lost the last election, they blamed the liberals for wanting things for free, then they created these conspiracy theories about democratic voter fraud, then they complained about NK not dancing to america’s tune, which was the result of the obama admin cutting foreign aid to NK, a policy they advocate, or when they pointed towards the democrats for opposing bank regulations before the recession, despite the fact that deregulation is what they always advocate.