What's a U-Turn?

A U-turn is where a politician decides they're going to do this and then does it in the opposite direction. So there was a U-turn on not including corporation tax that has been planned. She also took some funding from energy companies like Shell and ESO. But trust kept saying, no, no, we are the party of business - but everything they did was another U-turn. I mean, they did was incredibly bad for business. Another U-turned. And she's thrown him under the bus in the hope that it'll save her being the Prime Minister.