They have to stop limiting progressive movements. I know it's technically not Conservative to be against progressive movements, but the Republican Party was a Progressive Party up until FDR.
And even after that, Eisenhower, Nixon, Reagan and Bush Senior all proved to be Progressive, yet Conservative, presidents.
Bush Junior has been Conservative on the Progressive movement, in that, he was against it. He banned gay marriage and fought a useless War on Drugs. The fact is, Republicans were the most successful when they REBELLED against current standards. But now that they focus more and more on being Socially Conservative, they're losing touch with the people.
List of the greatest presidents in History who were also Republican:
Lincoln - Focused on maintaining the Union and supporting big business against immigration floods. Also... freed the slaves. All were considered Liberal back then.
Teddy Roosevelt - Creator of the Progressive Party (Bull Moose Republicans) where he fought against monopolies in order to make a more balanced market while still supporting big business. The thing is, as a Capitalist he found competition to be the most important part of it. Also passed environmental laws.
Eisenhower - Sent the troops to protect the first integrated southern students. Also was the president in the happiest times, even though they also fought Communism. It was the error of good feeling. Everyone liked Ike.
Reagan - Shrank government while increasing the military. Even started the Star Wars program which helped create GPS and laser guided missiles. Basically, much of what the military enjoys today is much thanks to Reagan.
Bush Senior - Fought the most successful war in American history, with very low casualties along with major victory.
Ya see, if Republicans would just focus on what has always made them great and stop with this stupid banning of gay marriage shit, they would be much more successful and be able to continue their PROGRESSION.