In the post-World War II era, only three presidents have had a lower approval rating at this point in their presidency than Biden.

Two of those presidents -- Jimmy Carter and Donald Trump -- went on to lose reelection.

The third was Ronald Reagan. In 1983, he was unpopular and facing critics who said he was too old. But the next year, Reagan won reelection in the biggest landslide in the history of modern American politics, winning every state except for Minnesota, home of his Democratic opponent, Walter Mondale.

It’s no accident that Biden is echoing Reagan’s message from 40 years ago. Back then, the country was just starting to recover from high inflation and high interest rates. Reagan acknowledged the pain in his own State of the Union address and, as he launched his reelection bid, his campaign buttons urged the country to “STAY THE COURSE."

Biden’s message on Tuesday? “Finish the job.”

-ABC News Chief Washington Correspondent Jonathan Karl

As she made her way to the House chamber, Rep. Nancy Pelosi told ABC News that she's "thrilled" to hear what Biden has to say to Congress.

"I'm so excited about tonight. The president will talk about what he has accomplished. It'll be a message of progress and hope about how we go forward and what more needs to be done and what the path is to that," Pelosi said.

The California Democrat, who has witnessed several presidents -- Biden included -- deliver State of the Union addresses from the dais as House speaker, insisted that there was much for Biden to "brag about."

"I'm really quite thrilled," she continued. "I can't remember being so thrilled on the State of the Union, because there's so much for him to brag about, but also that he knows needs to be done."

-ABC News' Will Steakin

Biden is going to call on Congress to do a lot in his speech -- he’ll talk about the issues he thinks are ripe for action and the policies he wants Congress to prioritize. But lawmakers probably won’t follow through on most of them.

According to an analysis of legislation passed after every State of the Union address since 1965, conducted by political scientists Donna Hoffman and Allison Howard, Congress only fully enacted 24.3% of a president’s requests, on average, and partially enacted another 13.8%.

In some years -- like 2016 and 2020 -- none of the requests were acted on. So even if Biden makes big, bold proposals for Congress, don’t expect most of them to become reality.

-FiveThirtyEight’s Amelia Thomson-DeVeaux

Arkansas Gov. Sarah Huckabee Sanders plans to use the Republicans' official State of the Union rebuttal to tear into President Joe Biden and the Democrats, focusing heavily on culture war issues while highlighting where she says the economy has failed.

According to excerpts of her speech shared by her office, Sanders, the country's youngest governor and a White House press secretary under President Donald Trump, will pan Democrats as high taxers who "[light] your hard-earned money on fire." But most of the highlights previewed by her office focused on labeling the Democratic Party as a "woke" group in almost religious terms.

"You get crushed with high gas prices, empty grocery shelves and our children are taught to hate one another on account of their race, but not to love one another or our great country. ... And while you reap the consequences of their failures, the Biden administration seems more interested in woke fantasies than the hard reality Americans face every day," she will say. "Most Americans simply want to live their lives in freedom and peace, but we are under attack in a left-wing culture war we didn’t start and never wanted to fight."

"Every day, we are told that we must partake in their rituals, salute their flags, and worship their false idols … all while big government colludes with Big Tech to strip away the most American thing there is -- your freedom of speech."

Republicans like Trump and others are already preparing to challenge Biden ahead of his expected reelection bid, with party leaders divided over the best approach. Sanders, Trump and others have embraced social issues, while others have focused on inflation and government spending.

Former President Donald Trump, who is running for the White House again in 2024, released a brief video response to Biden's address, painting a much grimmer picture of the nation and pointing to the state of crime, inflation and the southern border as the "real state of the union."

"But the good news is we are going to reverse every single crisis, calamity and disaster that Joe Biden has created," Trump said in the two-minute video. "I am running for president to end the destruction of our country and to complete the unfinished business of making America great again."

Separately, Trump live-reacted to Biden's address on Truth Social, posting on the social media site over 30 times to comment on Biden and others in the chamber -- including mocking Biden for frequently saying "folks."

-ABC News' Olivia Rubin