1. The President of the United States technically doesn't spend a dime. He states the sort of stuff he believes are the countries priorities, and such, but CONGRESS is the one that creates and passes the spending legislation. The President signs into law that which he agrees with and vetoes that which he does not agree with. But the point here is that CONGRESS spends the money. Got it?
2. When Congress is divided, meaning the Democrats have the majority in one house and the Republicans have the majority in the other, there is rarely anything that can get done. Again, BOTH houses of Congress have to essentially agree. When there is a political divide, it's HARD to get that agreement. So ... in point 1 we said that CONGRESS spends the money. In point 2 we stress that it's ALL of Congress, but shared agreement across both houses.
3. George Bush held office up to January 20, 2009, but his power to spend with a friendly Congress dates ALL THE WAY back to January 20, 2005 when America voted in Democratic majorities to both houses of Congress. So, any spending that you want to try to blame on Bush must end 6 and 1/2 years ago.
4. When President Obama took office, he came in with Democratic majorities in both houses of Congress. It is then that CONGRESS pushed through the biggest increases in spending, the biggest increases in our deficits that any President has ever signed into law. Yes, without question, they were Obama's proposals. Without question, Obama EAGERLY signed them into law. But CONGRESS spent that money! A DEMOCRATIC Congress that ended up being in office for 8 consecutive years from January 2005 to January 2010.
5. This Congress is ... divided. Why your question refers at all to "Republican Congresses" is beyond me! Go back through history and tell me how often over the past 60 years or so that REPUBLICANS have held majorities in both houses of Congress! You will be stunned by how few years it has been!
In fact, I got this off of answers.com:
During the administration of President Franklin D. Roosevelt (1933-45), the Democratic Party controlled both houses of Congress. The Republicans won control of both houses in the 1946 elections, only to lose them in 1948; with Dwight D. Eisenhower's election to the presidency in 1952, the Republicans again won both houses. However, after the Democratic Party again won back control in the elections of 1954, it was the majority party in both houses of Congress for most of the next 40 years; the Republicans were only able to win control of the Senate for a six-year period (1981-87). The Republicans won a majority position in both houses of Congress in the elections of 1994. The Republicans controlled both houses until 2006, except the Senate for most of 2001 and 2002, when the Democrats had the majority after Jim Jeffords left the Republican Party to become an independent and caucus with the Democrats. In 2006, the Democratic Party regained control of the House of Representatives, and the results of the Senate elections yielded a Senate makeup of 49 Republicans, 49 Democrats, and two independents. In the 110th Congress (2007-08), the Democratic voting bloc has a 51-49 majority in the Senate because the two independents, Joseph Lieberman of Connecticut and Bernie Sanders of Vermont, align themselves with the Democratic Party. -Source: www.wikipedia.org (US Congress)
So ... to your point. Republican Congresses will take FULL responsibility for every dime they've spent during their years in power if the Democrats will do the same. Fair is fair, right?