Which was Andrew Johnson provocative action leading the radical republicans in congress to seek his ouster

He supported the quick restoration of the seceded states to the Union without protection for the former slaves

Explanation:

Andrew Johnson's provocative action leading the radical republicans in congress to seek his ouster is that "he supported the quick restoration of the seceded states to the Union without protection for the former slaves."

Before the American Civil war in 1861, it was only the majority of the North and Republicans that supported the abolition of slavery. Hence, following the loss of Confederates/Seceded states after the War in 1865, and the subsequent assassination of President Abraham Lincoln, Andrew Johnson becoming the new President of the United States " supported the quick restoration of the seceded states to the Union without protection for the former slaves." This situation led to Congress inclined along Republicans to seek his impeachment

answer: secession

secession, as it applies to the outbreak of the american civil war, comprises the series of events that began on december 20, 1860, and extended through june 8 of the next year when eleven states in the lower and upper south severed their ties with the union. the first seven seceding states of the lower south set up a provisional government at montgomery, alabama. after hostilities began at fort sumter in charleston harbor on april 12, 1861, the border states of virginia, arkansas, tennessee, and north carolina joined the new government, which then moved its capital to richmond, virginia. the union was thus divided approximately on geographic lines. twenty-one northern and border states retained the style and title of the united states, while the eleven slave states adopted the nomenclature of the confederate states of america.

explanation:

i also think he is correct. i believe they came to washington to protest their rights.