Trump ally Mehmet Oz is on course to win his Pennsylvania Senate battle against Democratic rival John Fetterman, according to new analysis.The Republicans are hoping to take both chambers of Congress at next month's election, allowing them to dramatically restrict the power of President Joe Biden. An analysis by Real Clear Politics (RCP), based on opinion polling adjusted to take account of past inaccuracies, projects Oz will win Pennsylvania by 1.9 percent of the vote.The calculation is drawn from an RCP produced average of recent polls, which puts Fetterman ahead by 3.2 points. However, the RCP calculated polling averages for...