What do you call a member of congress who intrduces a bill

The bill sponsor

Explanation:

After the idea for a bill is developed and the text of the bill is written, a Member of Congress must officially introduce the bill in Congress by becoming the bill's sponsor. Representatives usually sponsor bills that are important to them and their constituents.

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d) a week

because the land run of 1889, although not without precedent in the history of the west, further, their men were aboard the first trains, ready to jump off and begin staking their claims. oklahoma city, edmond, and guthrie were all so affected.