WASHINGTON (AP) — Senate Republicans skeptical about a GOP health overhaul bill are expressing some doubt about holding a vote this week as they await a key analysis from the nonpartisan Congressional Budget Office. President Donald Trump, making a final push to fulfill a key campaign promise, insists Republicans are not "that far off" and signaled last-minute changes are coming to win votes. [...] five Republican senators are expressing opposition to the Senate GOP plan that would scuttle much of former President Barack Obama's health law. The holdouts are expressing willingness to negotiate, but many of them are pushing revisions that could risk alienating moderate Republicans in the process. Sen.