MADISON, Wis. (AP) — The head of the Wisconsin Hospital Association is urging Gov. Scott Walker to parlay his influence with the White House and Republican leaders in Congress to make significant changes to the stalled health care overhaul bill. Hospital Association President Eric Borgerding outlined more than a dozen points of concern in a letter marked as hand-delivered to Walker on Monday. Borgerding has been speaking publicly this week about the group’s concerns and its estimate that 311,000 people in the state would lose insurance coverage by 2026 under the GOP plan. House Speaker Paul Ryan planned to vote on the bill Thursday but delayed it as he and President Donald Trump continued to try and reach a deal to secure its passage. Walker had no immediate comment on the concerns raised in the letter.