Factual error: In the final scene where Congress is supposedly passing the bill, they are still in the committee room. Bills are not passed there, but in the actual meeting halls of the House and the Senate.
Factual error: Where exactly does Evan park? Members of Congress have access to underground parking facilities at the House and Senate office buildings which are located directly adjacent to but not at the Capitol building itself. Evan appears to park on the street, in front of the Capitol building, in a parking space that would ordinarily be blocked off for security reasons.
Factual error: The Ark ends up below the stairs of the Capitol, but seconds before it sets right outside the window of the committee meeting room. Those are not below the stairs.
Factual error: As the story goes, two of each animal are to board the ark, one male and one female, side-by-side. Thus, two pairs of peafowls(one pair of each species) should board. Yet, in the scene where all the birds are in Evan's office, we see two peacocks(male) of the same species side-by-side, when we should see a peacock and a peahen.
Factual error: The first time Evan sees the "GO-4-WOOD" truck, he runs outside to stop the truck. According to his clock, it is 6:14 in the morning. Yet you can see that the sun is overhead, clearly it's the middle of the day.
Factual error: When the news reporters are summarizing the events of September 22, the camera pans back and up looking over Capitol Hill towards the Northwest. The sun is casting a shadow towards the west indicating that is morning though the "flood" was at midday. Also the rainbow indicates that the sun is behind the viewer and to the East. The westward shadow also casts a bit southward indicating the a shadow of an early morning in the summer. With it being September 22nd, the shadow would cast directly west since the sun rises due East during the equinoxes. (01:25:30)
Answer: With it, Long would have been able to destroy the land, create another dam and get more houses built. However, like the first dam, he would have cut corners which would cause the new dam to eventually break.
They were members of the house of representatives.