How did Mexico react to John Slidell’s offer to buy California and resolve the border dispute?

John Slidell, an American envoy sent to Mexico by President James K. Polk in late 1845, was tasked with negotiating the purchase of California and settling the border dispute between Mexico and the United States following the annexation of Texas. His mission encompassed several goals: to secure a peace treaty, determine the Rio Grande as the southern border of Texas (rather than the Nueces River, as Mexico claimed), and to negotiate the purchase of the territories of New Mexico and California.

Mexico, having never recognized the independence of Texas and considering its annexation by the United States as an act of aggression, was in no mood to negotiate away additional territories. The Mexican government was politically unstable at the time, and entertaining Slidell's proposals could have been seen as a betrayal of national sovereignty, possibly leading to political suicide for those in power. Furthermore, there was a strong sense of national pride and a lingering resentment over the loss of Texas.

When Slidell arrived in Mexico, he found a government unwilling to even receive him officially. President José Joaquín de Herrera was seen as too conciliatory towards the U.S. by his political opponents, leading to his being deposed by General Mariano Paredes in December 1845. The new government refused to acknowledge Slidell as an official representative of the U.S., rejecting the proposition to sell large swathes of Mexican territory, and thus, Slidell's mission ended without success.

The failure of Slidell's mission increased tensions and contributed to the outbreak of the Mexican-American War in April 1846. The United States, under Polk's leadership, argued that it had tried to resolve the disputes diplomatically and that Mexico's refusal to engage with Slidell justified a military response. Despite Mexico's initial resistance, the war ended with the signing of the Treaty of Guadalupe Hidalgo in 1848, whereby Mexico was compelled to cede an enormous amount of territory to the U.S., including the present-day states of California, Nevada, Utah, Arizona, and New Mexico, as well as parts of Colorado, Wyoming, Kansas, and Oklahoma, in exchange for a sum of $15 million and the assumption of certain American claims against Mexico.

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I apologize for any confusion caused by my previous response. To clarify, when John Slidell arrived in Mexico as a special envoy from the United States in 1845 with the intent to purchase California and parts of New Mexico and to settle the Texas border dispute, the Mexican government was not receptive to his mission.

The Mexican government, having never recognized the annexation of Texas by the United States, was deeply offended and saw no legitimacy in negotiating its border on the premise that Texas was already part of the U.S. Consequently, when Slidell attempted to present his credentials and meet with Mexican officials, Mexico's president, José Joaquín de Herrera, facing opposition within his own government and public sentiment strongly against any concession to the U.S., refused to formally receive him as an official envoy.

Mexico's reaction was driven by a mixture of factors: national pride, political instability, and the perception that accepting the U.S. envoy's proposals would be tantamount to an acknowledgment of the U.S. annexation of Texas and a violation of Mexican sovereignty. As a result, Slidell's mission was effectively stonewalled by the Mexican authorities.

The rejection of Slidell's diplomatic efforts contributed to the growing tensions between Mexico and the United States, leading up to the Mexican-American War, which broke out in April 1846. It was only after the U.S. victory in the war that the U.S. achieved some of the aims Slidell had initially been sent to negotiate, through the Treaty of Guadalupe Hidalgo in 1848—a treaty reached under vastly different circumstances.

kewl kewl answered

how did Mexico react to John Slidell's offer to buy California and resolve the border dispute?

Mexico wanted further negotiations?
Mexico happily agreed to the offer?
Mexico declared war?
Mexico felt insulted and rejected the offer?