[wideawake]

Why did the Whig Party evaporate?

Why did the GOP come into existence?

[KC_Lion]

The Whig Party died because it failed to stand up to the Democrats on the Issue of Slavery.

They wanted to be the Get Along Gang.

The Republicans came in and said "NO!" To the Kansas-Nebraska Act or whatever Trick the Dem's were using to expand Slavery to the West.

Because the Whigs wheeled and leaded to limited the growth of governm-, I mean slavery only made things worse, finally when it became Clear that the New Republican Party didn't need any of Slave states to win the Presidential Election of 1860, the south said "To Hell with this" and the rest is history.