In April 1844, representatives from the United States and Texas negotiated a treaty in which Texas would join the Union as a(n) (a)   , but it never went into effect.

In the mid-1800s, many Americans believed in (a)   , the idea that it was preordained that the United States would settle North America from coast to coast.

(a)   opposed annexation because they thought they could obtain better terms trading with the Republic of Texas than they could if Texas were part of the United States.

On February 28, 1845, the U.S. Congress passed a joint resolution admitting Texas to the Union as a(n) (a)   .

The first governor of the state of Texas was (a)   .

Southern Democrats, led by (a)   , wanted to allow slavery in all Western territories.

Many members of the Northern (a)   Party were opposed to expanding slavery to the Western territories.

The (a)   Party wanted to prevent immigration from countries such as Ireland, Germany, and China.

The Texas Constitution of 1845 gave (a)   the right to vote.

Native Americans in Texas were later moved to (a)   , north of the Red River.

Mexico considered the southern boundary of Texas to be the (a)   River while Texas maintained the border was at the Rio Grande.

In 1845 the American president sent (a)   as a secret envoy to Mexico to negotiate the purchase of the disputed territory between the rivers, as well as the area that is now California, Arizona, and New Mexico.

Mexican troops attacked the American soldiers camped near the Rio Grande, prompting U.S. President (a)   to declare war on Mexico.

In the treaty, Mexico surrendered the area called (a)   , which included all of the modern states of California, Nevada, and Utah, and parts of Arizona, Colorado, New Mexico, and Wyoming.

With the Treaty of (a)   , Mexico gave up all claims to Texas and accepted the Rio Grande as the southern boundary of Texas.

Under the terms of the (a)   , California joined the Union as a free state and voters in the remaining territories gained from Mexico would decide the issue of slavery. A. Compromise of 1850 B. Gadsden Purchase C. Mexican Cession Agreement D. Southwestern Territory Treaty

The Compromise of 1850 settled the issue of (a)   .

After Anglo Americans, (a)   were the second-largest group in Texas before the Civil War.