Guidehouse Budget Analyst interview questions

Applied online in May, received an email shortly after to set up a phone interview. Had the phone interview which seemed to go well. Weeks go by and didn't hear anything so I assumed I didn't get it. Just now in mid-July did I get an email from them saying the position was cancelled. Ridiculous. Also the way the company/position was set up is like Guidehouse is almost like a recruiting agency similar to Robert Half and I would be working on assignment at a federal company. My paycheck would be from Guidehouse but the coworkers and environment would be at the federal company which is very weird.