Final answer:
Urban political machines controlled access to political power by securing jobs and contracts for their supporters through patronage.
Step-by-step explanation:
One additional way that urban political machines controlled access to political power was by securing jobs and contracts for their supporters. This practice, known as patronage, allowed political machines to reward loyal followers with positions in government and lucrative business contracts. By controlling employment and business opportunities, the political machines could ensure the support and loyalty of their supporters, thereby further consolidating their control over political power.
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