President Donald Trump will deliver his first address to a joint session of Congress on Tuesday night, where he is expected to discuss health care, border security and the military.

The address will be broadcast live starting at 9 p.m., from the House Chamber at the U.S. Capitol in Washington.

It is tradition for a first-year president to forgo a State of the Union address and instead discuss his vision for the country's future at a joint session of Congress.

"All I can do is speak from the heart and say what I want to do," Trump said Tuesday morning in an interview on Fox & Friends. "I'll be talking about the military. I'll be talking about the border."

Trump later said he would also discuss his party's plans to repeal and replace former President Barack Obama's legacy health care legislation, the Affordable Care Act. 

RELATED: 'A+' for effort: Trump grades his first month in office

During the Fox interview, Trump, who has the lowest approval ratings of any president after just one month in office — at 44 percent — gave himself high marks for his achievements so far. Trump gave himself an A+ for effort.

But he gave himself a C or a C-plus in terms of "messaging," admitting his administration hasn't done a good job explaining his initiatives to the American public.

"This will be an opportunity for the people and their representatives to hear directly from our new president about his vision and our shared agenda," said House Speaker Paul Ryan. 

The public can watch a live stream of the speech online at whitehouse.gov or on Facebook.