I invested cash and my IRA with the firm of Universal Brokers(Pat Kiley).They have claimed bankrupcy. What do I do now?

You're going to have to pay attention to that bankruptcy proceeding, and at some point you may have to file a claim.  I'd suggest an internet search, to see if you can find a lawyer in your state who is already involved in this, for someone else in your position;  you might find you even have some choice here.

Otherwise, you'd best hire someone who does creditor's rights work.  Without knowing a lot more about the debtor, the estate and the debts, it's very hard to give you any idea what you can expect to get back.