I once read in a newspaper the sentence like " some leadership pressed to bring a vote to the floor on the confirmation of something." So what does the phrase mean here? Any slang used? Where can I look them up? Thanks!
It means take the matter out of a committee and present it to the entire legislative body.
The floor of a legislature or chamber is the place where members sit and make speeches. When a person is speaking there formally, they are said to have the floor. The House of Commons and the House of Lords of the United Kingdom; the U.S. House of Representatives and the U.S. Senate all have "floors" with established procedures and protocols.
Activity on the floor of a council or legislature, such as debate, may be contrasted with meetings and discussion which takes place in committee, for which there are often separate committee rooms.