Question

In the wake of the September 11th attacks,
other nations were reluctant to support the US.
the government became partisan and divided.
a struggling economy became even worse.
President Bush struggled to build support.

Answer 1

Here are two cleaned-up options you can use, depending on the tone and level of detail you want.

Concise, corrected version
In the wake of the September 11 attacks, many nations initially offered support for the United States, but international cooperation proved uneven. Domestic politics grew more partisan and divided, and a struggling economy worsened. President Bush had difficulty building and sustaining broad support for his policies.

Expanded, more nuanced version
After the September 11 attacks, a number of countries quickly expressed solidarity with the United States, though cooperation varied and disagreements over strategy emerged. At home, politics became increasingly partisan, and existing economic problems deepened as markets and consumer confidence were shaken. President George W. Bush faced challenges in rallying consistent public and congressional backing for his proposed responses.

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