Between 2009 and 2013, including when Mrs. Clinton was secretary of state, the Clinton Foundation received at least $8.6 million from the Victor Pinchuk Foundation, according to that foundation, which is based in Kiev, Ukraine. It was created by Mr. Pinchuk, whose fortune stems from a pipe-making company. He served two terms as an elected member of the Ukrainian Parliament and is a proponent of closer ties between Ukraine and the European Union.

In 2008, Mr. Pinchuk made a five-year, $29 million commitment to the Clinton Global Initiative, a wing of the foundation that coordinates charitable projects and funding for them but doesn't handle the money. The pledge was to fund a program to train future Ukrainian leaders and professionals "to modernize Ukraine," according to the Clinton Foundation. Several alumni are current members of the Ukrainian Parliament.