This?
McKinney received nearly $3,000 from radical Arabs and Arab groups on the very date of the terrorist attack, Sept. 11
If McKinney's "I have no evidence, but...." is sufficient to warrant investigating the President, then there is more than enough cause to investigate her ties to terrorist money.
BTW, I found excerpts from her challenger's position papers and copied them to my post; I saw nothing in them that I could not support. She would be a vast improvement.