AP US Government and Politics
Out of 435 House seats how many are swing seats*?
*A swing seat is a district held with a small majority that is generally competitive in a legislative election. Because the number of Democrats and Republicans in a swing district are so close, a swing seat might be won by a Republican one election, and then a Democrat the next. This is also known as a competitive seat. The opposite is a safe seat, an district that is drawn so that it is predictably won by one party or the other, so the success of that party's candidate is almost taken for granted.