The Hall Family Foundation is pledging $75 million to build a research building at Children’s Mercy Hospital, but only if Jackson County voters pass a half-cent medical research sales tax.
At the hospital Wednesday, foundation president Bill Hall said the tax offers Kansas City a big opportunity.
"We recognize it is asking a great deal of the voters of Jackson County," he said. "However, we believe this is a moment we must seize. The tax is transformational."