Final answer:
It is false that Abraham Lincoln supported the US invasion of Mexico by citing Mexican aggression. Lincoln issued the 'Spot Resolutions' challenging President Polk's justification for the war, reflecting his opposition to what he considered an unjust conflict initiated by the United States.
Step-by-step explanation:
The statement that Abraham Lincoln supported the US invasion of Mexico by citing the aggressive behavior of Mexicans who invaded the US is false. In reality, Lincoln was a vocal critic of the Mexican-American War. He was a member of the Whig party and famously challenged President James K. Polk's justification for the war in what became known as the "Spot Resolutions." These resolutions demanded Polk to specify the exact location where Mexicans had allegedly spilled American blood on U.S. soil, suggesting skepticism of the president's claims that Mexico had invaded American territory.
Lincoln, along with other Whigs, viewed the conflict as an unjust war of aggression aimed at expanding slave territory rather than a defensive action. It was President Polk who had ordered General Zachary Taylor into the disputed territory, and after a skirmish ensued, he declared that Mexico had invaded U.S. land. This view was contested by many and considered a pretext for war. From the Mexican perspective, it was the United States that had invaded their sovereign territory as they contested the claim that their northern border was the Rio Grande instead of the Nueces River.