Back in the day, when Abe Lincoln was a Whig, the Republican Party believed in building things to support business. It used to be called "internal improvements", now it's called "infrastructure". One of Teddy Roosevelt's proudest boasts was that he built the Panama Canal. And then Ike built the interstate highways and the St. Lawrence Seaway.
Back in the day, when Andy Jackson was a Democrat, his party was racist. Woodrow Wilson pushed segregation, southern Democrats used racism to solidify their one-party dominance of the region.