DALLAS — Former Texas Gov. Rick Perry has chosen Dallas to officially declare his second run for the Republican presidential nomination on June 4.

For months Perry has said that he would announce his decision in May or June. But his constant travel to the early contest states of Iowa, New Hampshire, South Carolina and Florida has left little doubt of his intentions.

Perry joins a burgeoning field of contenders, including fellow Texan Sen. Ted Cruz.

The announcement was made via the Twitter account of his wife, Anita.

Unlike four years ago, when he rushed into the contest after seeing he could raise quick money and was leading in polls, Perry enters this contest as an underdog.

He is polling in single digits, but again unlike his last run, he has spent more than a year in preparation. He has consulted weekly with conservative experts on foreign relations and economic policy. He has assembled advisers and campaign teams in the early states and has even taken tutoring in public speaking.

He has frequently acknowledged mistakes in his last run – entering while still ailing from recent back surgery and being under-prepared for the rigors and questions on the campaign trail.

In the 2016 contest, he will begin from behind, not only trying to push his message through the similar-sounding policies advanced by a large pack of candidates, but he also must erase memories of his previous debate flops and campaign stumbles.

Perry has been stressing that he is the only GOP candidate – save for potential rival South Carolina Sen. Lindsey Graham – who has served in the military.

He also has touted his executive experience as Texas governor for 14 years. But he has competition with that credential from top-tier contenders Wisconsin Gov. Scott Walker and former Florida Gov. Jeb Bush.

He will also mostly certainly stress his economic record in Texas, which has led the nation in job creation. He underscores lawsuit limits, minimum regulations on businesses and low taxes for firing the state’s economic engine, which has sputtered in recent months with the plunge in oil prices.

Sources predict that after his announcement, he will immediately resume campaigning in Iowa, where he will be this weekend and into next week.

He is joining most other GOP candidates at a forum on Saturday and then spending the next several days on a nine-day tour of small towns throughout the state.