HOUSTON -- Some National Guard members have started arriving at the U.S.-Mexico border with more expected as federal government officials continue to discuss what they'll do about illegal immigration.
The Republican governors of Texas, Arizona and New Mexico on Monday committed 1,600 Guard members to the border, giving President Donald Trump many of the troops he requested to fight what he's called a crisis of migrant crossings and crime.
The only holdout border state was California, led by Democratic Gov. Jerry Brown, who has not announced whether troops from his state's National Guard will participate and has repeatedly fought with Trump over immigration policy.
Under the federal law Trump invoked in his proclamation calling for National Guard troops, governors who send troops retain command and control over their state's Guard members and the U.S. government picks up the cost.
Brown's spokesman, Evan Westrup, said California officials still are reviewing Trump's troop request.
Trump said last week he wants to send 2,000 to 4,000 National Guard members to the border, issuing a proclamation citing "the lawlessness that continues at our southern border."
Trump administration officials have said that rising numbers of people being caught at the southern border, while in line with seasonal trends in recent years, require an immediate response.
Apprehensions are still well below their historical trends during the terms of former presidents George W. Bush and Barack Obama, both of whom also deployed the Guard to the border.
In Mexico City, a caravan of Central American migrants that had been heading north stopped in the Mexican capital. The caravan had sparked furious criticism from Trump, followed days later by his National Guard border protection deployment plan. Organizers said they never intended to go to the U.S. border.
Arizona Gov. Doug Ducey told a group of soldiers preparing to deploy from a Phoenix military base that their "mission is about providing manpower and resources" to support agencies on the border and denied that there was a political motive.
"I don't think this is a partisan issue or an identity issue," he said. "You show me somebody who is for drug cartels or human trafficking or this ammunition that's coming over a wide-open and unprotected border here."
Texas Gov. Greg Abbott told San Antonio radio station KTSA that he would add about 300 troops a week until the total number reaches at least 1,000 troops.
Some Guard members will be armed if they are placed in potential danger, Abbott said, adding he wanted to downplay speculation that "our National Guard is showing up with military bayonets trying to take on anybody that's coming across the border, because that is not their role."
There is no end date for the deployment, Abbott said: "We may be in this for the long haul."
New Mexico Gov. Susana Martinez's office said that more than 80 troops would deploy later this week. They will be the first of an expected 250 Guard members from New Mexico to serve on the border.
South Carolina Gov. Henry McMaster, a Republican, offered to send members of his state's Guard as well. South Carolina sent troops to the border during Operation Jump Start, the border deployment ordered by Bush in 2006.
Trump has said he wants to use the military at the border until progress is made on his proposed border wall, which has mostly stalled in Congress. Defense Secretary James Mattis last Friday approved paying for up to 4,000 National Guard personnel from the Pentagon budget through the end of September.
Mexico's foreign relations secretary said his government is evaluating its cooperation with the United States.
Luis Videgaray said in a Monday interview with local media that he will give results of the analysis to President Enrique Pena Nieto in coming weeks.
The country's Senate passed a resolution last week saying Mexico should suspend cooperation with the U.S. on illegal immigration and drug trafficking in retaliation for Trump's move.
But Videgaray said "no decision has been taken to reduce or suspend any mechanism or cooperation."
Joel Villarreal, the mayor of Rio Grande City in Texas, said he did not agree with what he characterized as "the militarization of the border."
"It's not good for business, to be frank with you," Villarreal said.
Christie reported from Phoenix. Associated Press writers Jeffrey Collins in Columbia, South Carolina; Susan Montoya in Albuquerque, New Mexico; and Kathleen Ronayne in Sacramento, California, contributed to this report.
National Guard members start arriving at US-Mexico border
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