fear that it would lead to war
This was because many there were many groups in the US that were against annexation. They were against it because Texas would tip the balance of power in the US Senate towards slave states.
It was delayed because the issue of Slavery and to balance whether it should be a free or slave state.
annexation
fear that it would lead to war
Of course it did!
northerners opposed because they said the annexation would bring more power to the south and spread slavery which they didnt want.
They hoped to build a strong Texas also because the United States wanted some of Texas. Some of which because slavery. The US annexation of Texas and Thorton affair. When some of them was pro slavery.
The northern state who opposed slavery.
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slavery
The Northeast was the region most opposed to the annexation of Texas in the mid-19th century. Many in the Northeast saw the annexation of Texas as a move that would expand slavery and upset the balance between free and slave states. They were concerned about the potential expansion of slavery and the implications it would have for their own state economies and political power.
They thought that granting popular sovereignty would allow slavery
Generally speaking, Southerners supported the annexation, while Northerners had fears. The main issue involved was slavery. Texas was annexed in 1845.