“Republicans argued that he did not properly enforce immigration laws, citing, in one case, the decision to release migrants after they arrived at the southern border. In fact, that’s an established practice followed by multiple administrations, in part because the US does not have sufficient space to detain people as they await immigration hearings.
Republicans also said that Mayorkas had made false statements to Congress because he testified that the border was “secure,” and that he blocked oversight by failing to respond to subpoenas and offer sufficient access to his office.
Mayorkas has pushed back against the charges, noting that his approach may differ from that of Republicans, but he’s been committed to immigration enforcement and has worked to comply with Congress’s oversight of the agency by providing testimony and documents.
Many Constitutional law experts also said Republicans had not shown that the charges reached a legal bar for impeachment, and that they instead seemed to be founded on policy disagreements. “If allegations like this were sufficient to justify impeachment, the separation of powers would be permanently destabilized,” wrote top scholars, including Harvard’s Laurence Tribe and Berkeley’s Erwin Chemerinsky, in a January letter.
The first phase of the Senate trial on Wednesday took place because the upper chamber needed to fulfill its constitutional duty. Following a House impeachment, the Senate’s job is to hear the charges and determine whether the person should be convicted. If an official is convicted — which requires a two-third majority vote — they would then be removed from their position. The Senate also has the option to dismiss, or table, the impeachment articles if a simple majority votes to do so.
Ultimately, that’s what happened on both articles against Mayorkas, though it wasn’t without some drama. During the process, Republicans were able to force additional votes on “points of order,” or procedural motions regarding how the impeachment should move forward. They used this platform to slam Democrats repeatedly for not holding a full trial like those seen during the impeachment proceedings of former Presidents Donald Trump and Bill Clinton and to try to delay the trial to a later date. The GOP points of order all largely failed on party lines.”
https://www.vox.com/politics/24133356/mayorkas-impeachment-trial-senate-dismissed