Because one of Trump's favorite legal tricks is a delay, some pundits have expressed concern that the appointment of a Special Counsel would aid Trump by slowing the investigation. Other pundits point out that, unlike Mueller, Smith will inherit the ongoing staff of FBI agents and DOJ prosecutors that have already been assigned to the investigation. Further, these pundits point out that a Special Counsel oversees the investigation, bypassing the usual DOG hierarchy, and the investigation may move faster.
Garland's explanation for appointing a Special Counsel is that DOJ regulations called for it. Those regulations state that the Attorney General will appoint a Special Counsel when the investigation or prosecution would present a conflict of interest for the DOJ and would be in the public interest. Garland said that Trump's announcement that he was running for president and Biden's apparent intent to reelection created a conflict of interest for the DOJ. Garland could have found that the appointment of a Special Counsel was not in the public interest. But Garland felt the need to add another layer of protection to the appearance to shield the DOJ from the appearance of undue influence. The appointment of a Special Counsel may appear to reward or give special treatment to Trump. But it will not seem like a reward if Trump is convicted.
Besides Garland's stated reasons for appointing a Special Counsel, there are at least three other reasons that Democrats should understand. First, Garland's attempt to distance (the DOJ) from the appearance of undue influence is doomed to fail with Trump's supporters. But Trump's supporters account for only about 35 percent of the electorate, while about fifty percent are Democrats. The remainder, about 15 percent, are swing voters who are critical to winning elections. Garland's appointment of a Special Counsel may benefit Democrats in future elections.
Second, the January 6 investigation may involve members of Congress. The Republican Majority in the House of Representatives will grill Garland about the DOJ's investigation of Trump. The appointment of a Special Counsel will provide Garland with a layer of protection. Of course, this will not stop the Republicans from asking questions Garland cannot answer about an ongoing investigation. Nonetheless, it will provide some cover. More importantly, Smith will have protection to investigate Republican members of Congress who may have participated in the January 6 insurrection.
Third, Garland may realize that his skills as a prosecutor may be somewhat rusty. Smith, on the other hand, appears to be an efficient and tough prosecutor. Not only has Smith handled many high-profile cases, but he also has an admirable record of having obtained convictions. Further, a Special Counsel will last past Biden's first term. If Biden is not reelected, Smith will still be able to conclude the cases.