Of course they won't.,
A little history lesson is in order, friend.
In early 70's, Russia was in the forefront of spreading its "Wars of Liberation" and "we" were seeing the Cold War for all it was worth.
Many thought the same as you, yet the Congress, led by Leftist, Anti-American, Pro-Communists DhimicRATS, (with the shameful acquiesence of the wuss Pubes) succeeded in cutting off ALL funding for not only our support of South Vietnam, but any other engagment we were involved in which advance our Cold War efforts.
Also, you should familiarize yourself with the Church Amendment, which emasculated and tied the hands (for the next 30 years) of our Intelligence Agencies.
Think it can't happen again?
Think for ONE minute the Far-Left, Hate-American, Pro-Islamofacist really "CAIR" about the future of our Great Republic, other than to see it destroyed?
Think again!!!
An interesting point of history, sure, but to say that something similar happened one way once is cautionary, not predictive.
Basically, it's 2006, not 1970. Just because the Democrats did something 35 years ago doesn't mean it's in their political interest today. Never assume that your enemies are predictable.
The main difference being terrorism, while less of a threat that communism, actually made it to our shore. Also, you should familiarize yourself with the Church Amendment, which emasculated and tied the hands (for the next 30 years) of our Intelligence Agencies.
The Church amendment, IIRC, was more to limit military activities and sales in SE Asia. I think you're confusing that with the fallout that resulted from the Shamrock/Minaret investigations, when Senator Church was head of the Senate Select Comittee on Intelligence. That backlash lead, among other things, to reforms that initially ranged from the FISA law, down to EO 12333.