Biden's Age is Becoming the Central Issue of the Campaign

 about "closet resembling" headlines on a specific day. Marnix has 

 for substrings found within any day's headlines.

 aside from letter case, punctuation, formatting quirks, and most spelling differences (I'll ignore unintentional mistakes, Kyiv vs kiev doesn't matter, etc.). This means 

. This probably sounds quite hard — and in fact it may be — but also the flashier headlines tend to be quite short so I think some predictions are doable.

For an answer in this market to resolve "YES," it must have been added at least 2 calendar days before the headline appeared in print. For example, a headline that appears on a December 31 issue will only count toward an answer in this market submitted before 23:59:59 eastern time on December 29.

a New York Times cover page article headline (print) is any article headline (i.e. large, bold, or separated text that precedes an article) that is present on the front page of a daily print edition of the New York Times

 (most days have 4-7 of these). It does not include subheadlines (smaller headline text) when those are present, even if those are prominent. For example, 

the headline after Obama's first election

 simply reads "OBAMA" according to these criteria. It also does not include the ~12 shortened article snippets below the solid black line at the bottom of the page (these aren't traditionally considered cover page articles).

 has the following cover page headlines, and only these headlines:

As Sweden Joins NATO, Bloc Asserts Its Resolve"

"Delays in Data Make Housing Riddle for Fed

Weary but Hopeful, Ukrainians Are Unbowed

"Biden Is Losing Party Loyalists Over Gaza War"

"$1 Billion Gift to Make Tuition At Bronx Medical School Free

The Business of Child Care Is Back on the Brink"

has the following cover page headlines, and only these headlines:

"A Conservative Supermajority May Be Just Getting Started"

Ending One Fight and Starting Another in a Polarized America

"For Collins, Decision Is a Betrayal by Kavanaugh"

"In an Instant, Midterm Contests Are Scrambled"