Bill Weld's in the Republican field, while several Democrats also announced their candidacy for US president. The field is expected to grow even larger as time goes on. Speculation had been ripe as to whether any Republicans would challenge President Donald Trump.

While many would consider it a long-shot, there have been indicators that Republican voters would like another option. And it seems that they might now have one.

Bill Weld formed an exploratory committee

Former Massachusetts Governor Bill Weld has made his first official move in seeking the Republican nomination for president.

He recently announced the creation of an exploratory committee regarding the nomination. Weld made the announcement in the neighboring state of New Hampshire. The second state to vote in the primary process, New Hampshire would likely be essential in his plans.

Many have expressed doubts about his chances. While Trump is highly polarizing even in the Republican Party, he still has a base of loyal supporters. The Washington Post reports that a key part of Weld's platform is portraying Trump as being 'reckless in spending.'

Weld has experienced several successes and failures in politics. After an unsuccessful campaign for Massachusetts attorney general, he became a United States attorney. During his tenure, oversaw the investigation into the corruptions in the administration of Kevin White, the mayor of Boston.

After serving as a deputy attorney general, Weld was elected governor of Massachusetts in 1990. He would later win re-election in 1994 in a landslide.

While still governor, he made an unsuccessful attempt for the US Senate. He later resigned from the governorship before the completion of his term. Democratic President Bill Clinton had nominated Weld for US ambassador to Mexico.

His nomination would eventually stall due to opposition from Jesse Helms, then-chairman of the Senate Foreign Relations Committee. Ultimately, Weld withdrew his name from consideration.

Afterward, Weld made run at the Republican nomination for governor of New York, losing in the end. In 2016, Weld was the Libertarian Party's nominee for vice president of the United States.

Former New Mexico Governor Gary Johnson was at the top of the ticket. Johnson and Weld received roughly three percent of the popular vote. It was one of the most successful showings for a third party campaign in recent history.

Other candidates may also emerge

Other Republicans have also been thought of as potential candidates. Jeff Flake, a former US Senator and Representative from Arizona, has declined to run. Reuters reports that John Kasich has also 'flirted with the idea.'

Kasich ran for the Republican nomination in 2016. He served as governor of Ohio for two terms. Previously, he had been a member of the US House of Representatives and the Ohio Senate. For part of his tenure in Congress, he chaired the House Budget Committee.

Former Tennessee Senator Bob Corker has said he hasn't ruled it out. Corker was previously mayor of Chattanooga, Tennessee and eventually chaired the Senate Foreign Relations Committee. Nebraska Senator Ben Sasse has expressed similar sentiments about the possibility.