He chose Taft because he thought he would be the next TR, he didn't realize that Taft wasn't as good as TR thought. When TR came back to the U.S. he saw how Taft was running things and he did not like it. So he decided to run for president again to change things.
yes but then again he didn't run again because he didn't want to serve more years than the other presidents so why did he run for election during 1912? Taft wasn't a progressive and TR was. The people didn't like Taft because of that so why would they want to vote for TR if he was the one who appointed Taft?
TR ran again because he didn't like the way Taft was doing things, he did it because he thought he had no choice in what was going on. It was either let Taft ruin the country and all that TR was working for or run again and make sure the things he did, weren't going to be distroyed.
but then again I have a point what's the point in appointing someone else to be your successor if when the next election comes you run anyway what's the point in that ? He wanted a lot stuff to be changed but yet he didn't do anything to change them. He wanted to do things about domestic policy but he never did anything about it.