Source: Wrestling Observer Newsletter
Kurt Angle recently made inquiries about returning to WWE. Angle spoke to Triple H on the phone and was said to be pretty much blown off. Angle then called Vince McMahon but Vince told him that Triple H makes the talent decisions now.
This led to Triple H being upset with Angle for trying to go over his head. This was all confirmed by Mark Madden, who had Angle on his show, and other sources.