The charts above are from the Civiqs Poll. They question a large sample of adults nationwide on a daily basis. The charts show the long-term popularity of the Democratic and Republican Parties over time. Currently, the Democrats (36% fav to 56% Unfav) are viewed slightly more favorably and slightly less unfavorably than the Republicans (29% Fav to 59% Unfav).
NOTE -- You can click on the images to get a larger image that's easier to read.