Segregation and Discrimination that effected Black Texans and Mexican Americans in Texas Historians have described the early twentieth century as the nadir of race relations in this country. Ironically, populism, which tried to create a biracial political coalition, helped to encourage segregation in the south. Attempting to prevent any coalition of blacks and poor white farmers, establishment Democratic politicians frequently demonstrated their Negrophobia by accusing blacks of having inherently inferior racial characteristics and warning that …showed first 75 words of 1591 total…

…showed last 75 words of 1591 total…border problems. Troubles escalated following a series of raids in the lower Rio Grande Valley connected with the Plan de San Diego. This radical manifesto, discovered in January 1915 and supposedly written in San Diego sought to ignite an uprising of Texas Mexicans, sympathizers in Mexico, and other aggrieved minority groups in Texas for the establishment of an independent republic composed of those territories that Mexico had lost to the United States in the Mexican War.