Sen. Ted Cruz 'firmly' supports Donald Trump for president: "The election has been decided."

On Tuesday night, Texas Sen. Ted Cruz publicly supported Donald Trump for president and urged the nation to rally behind the GOP candidate.

"I am thrilled to back Donald Trump for President of the United States," Cruz stated on "Hannity." "I am eager to show my support with great zeal."

In the 2016 election primaries, Cruz contested Trump fiercely and asserted that the Iowa caucus results demonstrated that only one Republican nominee is viable.

The Iowa caucuses were a decisive win for Donald Trump, according to Cruz. He stated, "I've been there, I know it well. The people of Iowa are very thorough in their examination of the candidates."

"Cruz commended the democratic process and Trump's victory, stating that he believes the race is now over."

On Monday, Trump won the Iowa caucuses with 51% of the votes, securing a 30-point victory over DeSantis, who finished in second place with a slight edge over Haley.

The former president's candidacy is "compelling," as shown by his landslide victory in the Iowa caucuses, according to the Texas senator.

"I believe we should let the process unfold, and it did. Last night's results were 51% of the vote, including 98 counties, which is compelling. At this point, I think the contrast between us and Biden should focus on substance, policy, and records," Cruz stated.

As he seeks a third term in the November election, Cruz is also a top senatorial election target for Democrats.

He stated that he wore the constant criticism and focus from Democrats as a symbol of pride leading up to his re-election.

"If you are a left-wing Democrat, after Donald Trump, there's nobody in the country you want to beat more than me. And Chuck Schumer has made clear I am his number one target in the country," Cruz continued. "The Democrats are going to spend $100 million this year trying to beat me and trying to flip Texas blue. Now, that ain't going to happen."

On Sunday, Sen. Marco Rubio, R-Fla., endorsed Trump, who was his 2016 primary rival.

Cruz and Trump have a complicated political history.

The conservative senator, who came in second to Trump in the 2016 Republican presidential race, delayed endorsing him for several weeks after Trump won the GOP nomination in 2020.

They mended their relationship and stood by each other in the following years.

In recent weeks, there has been growing pressure on Cruz from Trump world to support the former president before the Iowa caucuses on Monday.

In 2016, Cruz won the Iowa caucuses by a narrow margin over Trump and other contenders. Despite this, he refused to criticize the caucuses, stating that he had "great respect" for them and their procedures. As someone who was a part of the process in 2016, Cruz had a special appreciation for it and learned how unpredictable it could be.

In recent weeks, Trump on his social media platform Truth Social has criticized Cruz's plans to run for re-election in 2024.

In contrast to Republican Sen. Ted Cruz, who has expressed his support for a specific candidate, Republican Sen. John Cornyn has stated that he will remain impartial in the nomination race and has emphasized the need for the GOP to shift its direction.

Planet Chronicle' Charles Creitz contributed to this report.