The filings showed that the foundation took in $26.6 million in 2017, a 58 percent drop from the $62.9 million it received the previous year.

"Now several reports suggest that the decrease in donations could reflect a 'pay to play' activity in the years prior to the decline in donations," Meadows said.

The Clinton Foundation has repeatedly denied all allegations of "pay to play." -Fox News

Notably absent was US Attorney John Huber - the prosecutor appointed by Jeff Sessions to investigate the Clinton Foundation. Meadows said that the Justice Department would not allow Huber to appear. 

"Mr. Huber was asked to join us this afternoon and update the committee on the operations and progress of his investigation, and unfortunately, DOJ has been unwilling to make him available," said Meadows. 

Witness Tom Fitton of Judicial Watch noted that the Clinton Foundation had received "staggering sums" of money from Saudi benefactors in the range of $18 to $50 million, adding "While Mrs. Clinton was secretary of state, Bill Clinton gave two speeches in Saudi Arabia earning a total of $600,000," and stating that "There is enough evidence to warrant serious investigations of the Clinton Foundation."