This bill would terminate the emergency declaration related to border security issued by President Donald Trump on February 15, 2019. After passing both chambers of Congress, the bill was vetoed by President Trump on March 15th. An effort to override the veto would require a two-thirds vote in both chambers of Congress.
Under the National Emergencies Act, Congress can terminate emergencies declared by the president and legislation to that effect can be given expedited consideration: a joint resolution to terminate an emergency would have to be reported out of committee within 15 calendar days and placed on the floor for a vote within three calendar days after that. If passed, the bill would have the same privileged status in the other chamber of Congress.
As a joint resolution, this legislation could be considered by both chambers of Congress and signed into law by the president.