First of all, of course Trump doesn't take responsibility for anything. It's just a question of who he's going to blame for his failures. His own WH budget request for fiscal 2019 didn't request but
$1.6B for wall funding (65 miles), and what he shut down government over wasn't officially requested at all until AFTER the shut down, before that he just pulled a number from his fat rear end, which I'm sure he's already blamed on someone else.
But the hilarious thing is what kind of incompetent President can't get a very high priority ask of only $6B through a friendly House of Represenatives? He's just admitting he and his administration are a train wreck, powerless without Ryan holding their hand. Of course it helps when you're dealing with Congress to let them know before December, months AFTER the FY starts, how much you want. Trump told Congress $1.6B, and blames Ryan for not giving him at least $7B. Does this not strike even you Trump supporters as kind of pathetic?