And you!

where does the president present legislative goals?

In the speech called the State of the Union Address

The address fulfills the requirement in Article II, Section 3 of the U.S. Constitution for the President to periodically "give to the Congress Information of the State of the Union, and recommend to their Consideration such measures as he shall judge necessary and expedient."

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).