On Friday night, security at Trump Tower detained an unarmed man named Roosevelt Pleas who entered the building and said he wanted to speak with the president-elect.

A man was taken into custody on Friday after entering Trump Tower and communicating his intention to speak with the president-elect. 
The New York Daily News reports that 24-year-old Roosevelt Pleas, “entered the public atrium at Trump Tower about 10:30 p.m. Friday and willingly went through the security screening.” 
The piece goes on to state that “as U.S. Secret Service agents screened him, he told them that he had just gotten a call from the President-elect and needed to speak to him right away. He also mumbled something about Trump's election victory.” 
According to the New York Post, a source indicated that he wanted to talk to Trump “about election strategies.” 
Authorities reportedly did not consider the unarmed man a credible threat to the president-elect, but did believe that he was emotionally disturbed and sent him to receive a psychiatric evaluation.
However, they later found that Pleas had at least one outstanding warrant which is expected to be addressed after his medical release. 
Security at Trump Tower has been a top priority for the Secret Service with officials telling CNN recently that an internal proposal involves turning an entire floor of the building into a command post.