After the 2012 election, it became very apparent that the Republican "brand" was tarnished. This was even realized by the leadership of the Republican National Committee, who urged their members to moderate some of their policies to repair that image and garner more votes. Have they been successful in that effort? The obvious answer is NO. They have continued down the same path they were on before the 2012 election, seemingly convinced they just didn't adequately explain their policies (or had poor candidates).
Now a Pew Research Center survey (done between January 15th and 19th of a random national sample of 1,504 adults, with a margin of error of 2.9 points) shows that their party's brand is still tarnished. Instead of improving it, they may have even made it worse, and this could hurt them in the coming election (where losing only 17 seats out of 435 would cost them the House). The results of that survey are shown in the charts below.