Final answer:
The true statement about Clinton's impeachment is that there were not enough votes in the Senate to convict.
Step-by-step explanation:
The statement that is true about Clinton's impeachment is option C: It was clear from the beginning of the impeachment trial that there were not enough votes in the Senate to convict.
During Clinton's impeachment trial, an impeachment vote was held in the Senate, and it required a two-thirds majority vote to convict and remove the president from office. It became clear that there were not enough votes in the Senate to reach this threshold, and thus Clinton was not convicted and completed his second term as president.
This statement is supported by the information provided, which states that Clinton's trial in the Senate went nowhere because too few Senators wanted to move forward with removing the president.