Do they?
Ah, those poor pathetic Liberals.
Such as, John F. Kennedy, Franklin D. Roosevelt, Theodore Roosevelt, Harry S. Truman, Ulysses Grant, Abraham Lincoln, Andrew Jackson, James Madison, James Monroe, Thomas Jefferson, etc, etc...
And let us not forget the many Liberal social reforms, such as the New Deal, Social Security, Workmans Comp., Unemployment Insurance, The Civil Rights Acts, Head Start, The Americans With Disabilities Act, The Voting Rights Act, The Strategic Arms Reduction Treaty, The Family Medical Leave Act, Medicare, Public Education, Child Labor Laws, Womens Rights, etc, etc...
And while 18 of the last 31 US Presidents have been Republicans, it should be noted that the total terms between Democrats and Republicans break pretty much even.
And that early Republicans had some pretty Liberal ideas.